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Z211-E1-02A

ZEN Programmable Relay

Operation Manual

Revised May 2007

This operation manual is for version-2 (-V2) ZEN Programmable Relays only.

For version-1 or pre-version-1 ZEN Programmable Relays, refer to operation

manual with Cat. No. Z183.

Z211-E1-02A.book Page iii Monday, May 21, 2007 12:38 PM

Preface

OMRON products are manufactured for use according to proper procedures by a

qualified operator and only for the purposes described in this manual.

The ZEN is a compact and highly functional controller that can be used to easily

automate small-scale applications. Its development has drawn on OMRON's

advanced control technology and expertise in manufacturing various types of

controllers.

Version 2 of the ZEN includes Economy-type CPU Units and Communications-type

CPU Units. Twin timer operation and operation between days for weekly timers have

been added. Pulse output operation and 8-digit counters with high-speed counting

have also been added, and Expansion I/O Units have been downsized to half the

width.

This manual describes how to use version 2 of the ZEN. Before using the ZEN, read

this manual carefully so that you can use the ZEN correctly. Keep the manual close

at hand so that you can refer to it whenever necessary.

Intended Audience

This manual is intended for the following readers.

• Persons in charge of introducing FA devices

• Persons who design FA systems

• Persons who install or connect FA devices

• Persons who manage working FA installations

Persons who use this product must have sufficient knowledge of electrical systems

(i.e., an electrical engineer or the equivalent).

Z211-E1-02A.book Page iv Monday, May 21, 2007 12:38 PM

Warranty and Application Considerations

Warranty and Limitations of Liability

Read and Understand this Manual

Please read and understand this manual before using the product. Please consult

your OMRON representative if you have any questions or comments.

Warranty and Limitations of Liability

WARRANTY

OMRON's exclusive warranty is that the products are free from defects in materials

and workmanship for a period of one year (or other period if specified) from date of

sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR

IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS

FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER

ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED

THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR

INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR

IMPLIED.

LIMITATIONS OF LIABILITY

OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR

CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN

ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS

BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.

In no event shall the responsibility of OMRON for any act exceed the individual price

of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR

OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS

CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED,

INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION,

ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

Z211-E1-02A.book Page v Monday, May 21, 2007 12:38 PM

SUITABILITY FOR USE

Application Consideration

SUITABILITY FOR USE

THE PRODUCTS CONTAINED IN THIS DOCUMENT ARE NOT SAFETY RATED.

THEY ARE NOT DESIGNED OR RATED FOR ENSURING SAFETY OF PERSONS,

AND SHOULD NOT BE RELIED UPON AS A SAFETY COMPONENT OR

PROTECTIVE DEVICE FOR SUCH PURPOSES. Please refer to separate catalogs

for OMRON's safety rated products.

OMRON shall not be responsible for conformity with any standards, codes, or

regulations that apply to the combination of products in the customer’s application or

use of the product.

At the customer’s request, OMRON will provide applicable third party certification

documents identifying ratings and limitations of use that apply to the products. This

information by itself is not sufficient for a complete determination of the suitability of

the products in combination with the end product, machine, system, or other

application or use.

The following are some examples of applications for which particular attention must

be given. This is not intended to be an exhaustive list of all possible uses of the

products, nor is it intended to imply that the uses listed may be suitable for the

products:

• Outdoor use, uses involving potential chemical contamination or electrical

interference, or conditions or uses not described in this document.

• Nuclear energy control systems, combustion systems, railroad systems, aviation

systems, medical equipment, amusement machines, vehicles, safety equipment,

and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS

RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A

WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE

OMRON PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED

USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

Z211-E1-02A.book Page vi Monday, May 21, 2007 12:38 PM

vii

Disclaimers

CHANGE IN SPECIFICATIONS

Product specifications and accessories may be changed at any time based on

improvements and other reasons.

It is our practice to change model numbers when published ratings or features are

changed, or when significant construction changes are made. However, some

specifications of the products may be changed without any notice. When in doubt,

special model numbers may be assigned to fix or establish key specifications for your

application on your request. Please consult with your OMRON representative at any

time to confirm actual specifications of purchased products.

DIMENSIONS AND WEIGHTS

Dimensions and weights are nominal and are not to be used for manufacturing

purposes, even when tolerances are shown.

PERFORMANCE DATA

Performance data given in this manual is provided as a guide for the user in

determining suitability and does not constitute a warranty. It may represent the result

of OMRON's test conditions, and the users must correlate it to actual application

requirements. Actual performance is subject to the OMRON Warranty and Limitations

of Liability.

ERRORS AND OMISSIONS

The information in this document has been carefully checked and is believed to be

accurate; however, no responsibility is assumed for clerical, typographical, or

proofreading errors, or omissions.

This document shall not be copied for sales or promotions without permission.

This document is protected by copyright and is intended solely for use in conjunction

with the product. Please notify us before copying or reproducing this document in any

manner, for any other purpose. If copying or transmitting this document to another,

please copy or transmit it in its entirety.

Z211-E1-02A.book Page vii Monday, May 21, 2007 12:38 PM

viii

OMRON Product References

All OMRON products are capitalized in this manual. The word “Unit” is also

capitalized when it refers to an OMRON product, regardless of whether or not it

appears in the proper name of the product.

Visual Aids

The following headings appear in the left column of the manual to help you locate

different types of information.

Note Indicates information of particular interest for efficient and convenient

operation of the product.

1,2,3... 1. Indicates lists of one sort or anther, such as procedures,

checklists, etc.

Precautions for Correct Use

Precautions for Safe Use

Indicates precautionary information that should be heeded in using

the ZEN.

Z211-E1-02A.book Page viii Monday, May 21, 2007 12:38 PM

About this Manual

This operation manual is for version-2 (-V2) ZEN Programmable Relays only.

For version-1 or pre-version-1 ZEN Programmable Relays, refer to operation

manual with Cat. No. Z183.

When using a CPU Unit with an LED display (without LCD display), refer to the

ZEN Support Software Operation Manual (Cat. No. Z184).

Manual Contents

Section 1 gives an outline of the ZEN, including descriptions of ZEN features

and functions.

Section 2 explains how to mount and wire the ZEN and how to connect

sensors.

Section 3 explains basic settings required to operate the ZEN and setting

methods for internal bits.

Section 4 describes the many convenient functions provided by the ZEN.

Section 5 describes how to use optional products, such as Battery Units and

Memory Cassettes.

Section 6 lists the error messages and provides probable causes and

countermeasures for troubleshooting.

The Appendices provide specifications, technical references, version update

information, allocations and setting sheets, and other information related to

ZEN operation.

Related Manual

Manual Contents Cat. No.

ZEN Support Software

Operation Manual

Describes installation and operating

procedures for the ZEN Support

Software.

Z184-E1-03

Communications

Manual

Describes the communications functions

of the ZEN.

Z212

Z211-E1-02A.book Page ix Monday, May 21, 2007 12:38 PM

Visual Aids

The following headings appear in the left column of the manual to help you locate

different types of information.

Note

Indicates information of particular interest for efficient and convenient

operation of the product.

1,2,3... 1. Indicates lists of one sort or another, such as procedures,

checklists, etc.

Precautions for Correct Use

Indicates precautionary information that should be heeded to ensure

correct use of the ZEN.

Precautions for Safe Use

Indicates precautionary information that should be heeded to ensure

safe use of the ZEN.

Indicate the buttons that needs to be pressed in operating

procedures. Press each button once.

Indicate buttons that needs to be pressed in operating procedures.

Press one of the buttons once or more.

▲ ▼

Indicates that the display (the word “LANGUAGE” in this case) is

flashing. In this manual, this state is described by saying that the

“flashing cursor” is at the word “LANGUAGE”. In this state it is

possible to change settings and the position of the cursor.

LANGUAGE Indicates that the display (the letter “H” in this case) is flashing in

reverse video. In this manual, this state is described by saying that

the “highlighted cursor” is at the word “H”. In this state it is not

possible to change settings but the cursor can be changed to the

flashing cursor by pressing the OK button.

RUN

PARAMETER

SET CLOCK

LANGUAGE

ENGLISH

 OMRON, 2006

system, or transmitted, in any form, or by any means, mechanical, electronic, photocopying,

recording, or otherwise, without the prior written permission of OMRON.

No patent liability is assumed with respect to the use of the information contained herein.

Moreover, because OMRON is constantly striving to improve its high-quality products, the

information contained in this manual is subject to change without notice. Every precaution

has been taken in the preparation of this manual. Nevertheless, OMRON assumes no

responsibility for errors or omissions. Neither is any liability assumed for damages resulting

from the use of the information contained in this publication.

Z211-E1-02A.book Page x Monday, May 21, 2007 12:38 PM

TABLE OF CONTENTS

Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Warranty and Application Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v

OMRON Product References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

Visual Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

About this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

Visual Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii

Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Precautions for Safe Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi

Precautions for Correct Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix

Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi

SECTION 1

Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-1 Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 Features and Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1-3 Nomenclature and Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1-4 Memory Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

1-5 Allocating I/O Bit Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

1-6 Preparations for Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

SECTION 2

Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

2-1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

2-2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

SECTION 3

Programming and Operating Methods . . . . . . . . . . . . . . . . . . 55

3-1 Selecting Display Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

3-2 Setting the Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

3-3 Creating Ladder Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

3-4 Confirming Ladder Program Operation. . . . . . . . . . . . . . . . . . . . . . . . . . 69

3-5 Correcting Ladder Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

3-6 Using Timers (T) and Holding Timers (#). . . . . . . . . . . . . . . . . . . . . . . . 74

3-7 Using Counters (C) and the 8-Digit Counter (F) . . . . . . . . . . . . . . . . . . . 78

3-8 Using Weekly Timers (@) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

3-9 Using Calendar Timers (*). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

3-10 Analog Inputs (Analog Comparators (A)) . . . . . . . . . . . . . . . . . . . . . . . . 87

3-11 Comparing Timer/Counter Present Values Using Comparators (P) . . . . 91

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xii

TABLE OF CONTENTS

3-12 Comparing the 8-Digit Counter (F) Present Value Using 8-Digit

Comparators (G). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

3-13 Displaying Messages (Display Bits (D)) . . . . . . . . . . . . . . . . . . . . . . . . . 96

3-14 Using Button Input Bits (B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

SECTION 4

Special Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

4-1 Protecting Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

4-2 Stabilizing Input Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

4-3 Changing Backlight Automatic Cutout Time. . . . . . . . . . . . . . . . . . . . . . 106

4-4 Setting Daylight Saving Time (DST). . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

4-5 Reading System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

SECTION 5

Optional Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

5-1 Mounting Battery Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

5-2 Using Memory Cassettes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

5-3 Connecting the ZEN Support Software . . . . . . . . . . . . . . . . . . . . . . . . . . 114

SECTION 6

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

6-1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

6-2 Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

6-3 Deleting Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Appendices

A Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

B Ladder Program Execution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

C Operating Mode at Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

D Version Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

E Application Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

F Allocations and Setting Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169

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xiii

Precautions

This section provides precautions for using the ZEN Programmable Relays.

This information contained in this section is important for the safe and reliable

application of the ZEN. You must read this section and understand the information

before attempting to set up for a ZEN.

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv

Precautions for Safe Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi

Precautions for Correct Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix

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xiv

Precautions

Definition of Precautionary Information

The following notation is used in this manual to provide precautions required to

ensure safe usage of the product.

The safety precautions that are provided are extremely important to safety. Always

read and heed the information provided in all safety precautions.

The following notation is used.

Symbols

Safety Precautions

WARNING

Indicates a potentially hazardous situation which, if not avoided,

will result in minor or moderate injury, or may result in serious

injury or death. Additionally, there may be significant property

damage.

CAUTION

Indicates a potentially hazardous situation which, if not avoided,

may result in minor or moderate injury or in property damage.

Symbol Meaning

Caution

General Caution

Indicates non-specific general cautions, warnings, and

dangers.

Electrical Shock Caution

Indicates possibility of electric shock under specific

conditions.

Explosion Caution

Indicates possibility of explosion under specific

conditions.

Prohibition

Disassembly Prohibition

Indicates prohibitions when there is a possibility of injury,

such as from electric shock, as the result of

disassembly.

Mandatory

Caution

General Caution

Indicates non-specific general cautions, warnings, and

dangers.

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Precautions

WARNING

Serious human hazard may occasionally occur due to ignition or rupture of

the lithium battery used in the Battery Unit. Do not short the battery

terminals or charge, disassemble, deform under pressure, or incinerate

the battery.

Never use any battery that has been dropped on the floor or otherwise

subjected to excessive shock.

CAUTION

Electric shock, fire, or malfunction may occur. Do not disassemble, modify,

or repair the ZEN or touch any of the internal parts.

Electrical shock may occur. Never touch the I/O terminals, computer

connector, Expansion Unit connector, or Battery Unit connector while

power is being supplied.

Electrical shock may occur. Do not remove the Expansion Unit connector

cover unless an Expansion I/O Unit will be permanently installed.

Fires may occasionally occur. Tighten the terminal screws to a torque of

0.565 to 0.6 N·m (5 to 5.3 in-lb).

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xvi

Precautions

Please observe the following precautions for safe use of this products.

Circuit Design

1. All interface connectors and battery connector are live parts, they may not be

directly connected to Softy Extra Low Voltage (SELV) circuit or to accessible

conductive parts.

For the programming units and Personal Computers use only the ZEN-CIF01

Connecting Cable (optional accessory) manufactured by OMRON.

ZEN-CIF01 provides safe (reinforced) insulation between Personal Computers

and ZEN.

2. Provide emergency stop circuits, external interlock circuits, limit circuits, and

other safety circuits in addition to any provided within the ZEN control circuits to

ensure safety of the overall system in the event of ZEN failure or external factors.

3. If the ZEN discovers an error during self-diagnosis, operation will be stopped and

all outputs will be turned OFF. As a countermeasure for such problems, external

safety measures must be provided to ensure safety in the overall system.

4. Outputs from the ZEN may remain ON or OFF due to faults in internal circuits

such as output relay fusing or burning, or output transistor destruction. As a

countermeasure for such problems, external safety measures must be provided

to ensure safety in the overall system.

5. Fail-safe measures must be taken by the user to ensure overall system safety in

the event of broken signal lines or momentary power interruptions.

6. The durability of the output relays is largely affected by the switching conditions.

Confirm the operation of the system under actual operating conditions and set

the switching frequency to ensure that adequate performance will be provided.

Insulation faults and burning in the ZEN may result if relays are used after their

performance has deteriorated.

Connecting Expansion I/O Units

1. Supply power to both the CPU Unit and Expansion I/O Units from the same

power supply and turn them ON and OFF at the same time.

2. When connecting Expansion I/O Units with DC inputs to a CPU Unit with an AC

power supply, the burst noise immunity will be 1 kV (IEC 61000-4-4).

3. Expansion I/O Units with AC inputs (ZEN-8E1AR) cannot be connected to a CPU

Unit with a DC power supply.

System Startup and Program Changes

1. Check the user program for proper execution before actually running it on the

Unit.

2. Disconnect the output lines from the system before testing operation in any

system in which incorrect operation can result in injury or equipment damage.

3. Confirm safety before attempting any of the following operations.

• Changing the operating mode (RUN/STOP).

Precautions for Safe Use

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xvii

Precautions

• Using the button switches.

• Changing bit status or parameter settings.

4. Double-check all wiring before turning ON the power supply.

5. Refer to Cycle Time Calculation Method on page 130 and confirm that the

increase in the cycle time will not affect operation. If the cycle time is too long, it

may become impossible to read input signals accurately. The increase in the

cycle time will be particularly noticeable when set values are written in RUN mode

for a CPU Unit with communications (ZEN-10C4@R-@-V2).

Installation and Wiring

1. Do not allow the ZEN to fall during installation.

2. Be sure that the DIN Track mounting levers, Expansion I/O Units, Memory

Cassettes, Battery Units, cable connectors, and other items with locking devices

are properly locked into place. Improper locking may result in malfunction.

3. When mounting the ZEN to the surface of the control panel, tighten mounting

screws to the following torques.

CPU Units: 1.03 N⋅m max.

Expansion I/O Units: 0.46 N⋅m max.

4. Use wires with cross-sectional areas of 0.2 to 2.5 mm2 (equivalent to AWG24 to

AWG14) for wiring and strip them for 6.5 mm.

Handling

1. The environment of use of ZEN is "Pollution degree 2" and "Overvoltage category

II" specified in IEC60664-1.

2. Always use the ZEN within the rated ambient operating temperature and

humidity. The rated ambient operating temperature is 0 to 55°C for LCD-type

CPU Units and –25 to 55°C for LED-type CPU Units. If the ZEN is used near

sources of heat, such as a power supply, the internal temperature of the ZEN may

increase, lowering the durability of the ZEN.

3. Discharge static electricity from your body, e.g., by touching a grounded metal

plate, before touching any Unit.

4. The exterior of the Units will be damaged if it comes into contact with organic

solvents (e.g., benzene or paint thinner), strong alkalies, or strong acids. Never

allow such substances to come into contact with the Units.

5. Do not apply voltages exceeding the rated voltages. Internal elements may be

destroyed.

6. Short failures or open failures may result from the destruction of output elements.

Do not use loads that exceed the rated output current.

Maintenance

When replacing a CPU Unit, transfer to the new Unit and confirm all settings for clock

data, internal holding bits, holding timers, and counters before starting operation

again.

Transportation and Storage

1. Use special packaging boxes when transporting the ZEN and do not subject it to

excessive shock or vibration or drop it during shipment.

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xviii

Precautions

2. Store the ZEN at an ambient temperature of −40 to 75°C for LED-type CPU Units

and −20 to 75°C for all other types of CPU Units. If the ZEN has been stored at

−10°C or lower, allow it to stand at room temperature for 3 hours or longer before

turning ON the power supply.

Z211-E1-02A.book Page xviii Monday, May 21, 2007 12:38 PM

xix

Precautions

Installation Environment

1. Do not install the ZEN in the following locations.

• Locations subject to radical changes in temperature

• Location with high humidity subject to condensation

• Locations subject to excessive dust or dirt

• Locations subject to corrosive gas

• Locations subject to direct sunlight

2. Do not install the ZEN in locations subject to shock or vibration. Extended use in

such location may cause damage from stress.

3. In environments subject to static electricity (e.g., close to pipes conveying

forming materials, powders, or fluid materials), separate the ZEN as far as

possible from the source of static electricity.

4. The ZEN is neither waterproof nor oil-proof. Do not use it in locations subject to

water or oil.

5. Use the ZEN within the allowable power supply voltage range. Be particularly

careful in locations with bad power supply conditions, e.g., large fluctuations in

the power supply voltage.

6. Do not install the ZEN in locations subject to excessive noise, which may cause

the ZEN to fail.

7. Take appropriate and sufficient countermeasures when installing systems in the

following locations:

• Locations subject to strong electromagnetic fields

• Locations subject to possible exposure to radioactivity

Power Supply

1. Always turn OFF the power supply to the ZEN (CPU Unit and Expansion I/O

Units) before attempting any of the following.

• Assembling the ZEN

• Attaching or removing Expansion I/O Units

• Connecting or disconnecting any cables or wiring

• Attaching or removing the Memory Cassette

• Attaching or removing the Battery Unit

2. If the power supply is interrupted for 2 days or more (at 25°C), the internal

capacitor will discharge and internal bit status and the contents of PV areas will

be lost or corrupted and dates and times will be reset. When restarting operation

after the power supply has been interrupted for an extended period of time, check

the system in advance to confirm that no errors will occur.

Handling

1. Connect connectors only after confirming that the direction or polarity is correct.

2. Failures could result if dust or dirt enters the ZEN. Always connect the connector

cover to the computer connector whenever it is not being used.

Precautions for Correct Use

Z211-E1-02A.book Page xix Monday, May 21, 2007 12:38 PM

ES )QEMEEEH

Precautions

3. Do not remove the label from the left side of the CPU Unit if a Battery Unit is not

mounted.

Other

1. The execution of the ladder program in the ZEN is different from that for other

PLCs. Refer to Appendix B Ladder Program Execution when writing the ladder

program.

2. Abide by all local ordinances and regulations when disposing of the ZEN.

3. The Battery Unit (ZEN-BAT01, sold separately) contains a lithium battery.

Observe all applicable legal requirements for your area when disposing of the

lithium battery.

Z211-E1-02A.book Page xx Monday, May 21, 2007 12:38 PM

EMC Directives Low Voltage 'rect' e

xxi

Precautions

Conformance to EC Directives

Applicable Directives

•EMC Directives

• Low Voltage Directive

Concepts

EMC Directives

OMRON devices that comply with EC Directives also conform to the related EMC

standards so that they can be more easily built into other devices or the overall machine.

The actual products have been checked for conformity to EMC standards. The ZEN

complies with IEC/EN61131-2 clause 8. Whether the products conform to the standards

in the system used by the customer, however, must be checked by the customer.

EMC-related performance of the OMRON devices that comply with EC Directives will

vary depending on the configuration, wiring, and other conditions of the equipment or

control panel on which the OMRON devices are installed. The customer must, therefore,

perform the final check to confirm that devices and the overall machine conform to EMC

standards.

Low Voltage Directive

Always ensure that devices operating at voltages of 50 to 1,000 VAC and 75 to 1,500

VDC meet the required safety standards. The ZEN complies with IEC/EN61131-2 clause

11 except for 11.7.2.2.

Conformance to EC Directives

The ZEN complies with EC Directives. To ensure that the machine or device in which the

ZEN is used complies with EC Directives, the ZEN must be installed as follows:

1. The ZEN is an open-structure device. To meet the requirements of IEC/EN 61131-2

for open-structure devices, the ZEN must be mounted inside a control panel and

protected from mechanical impact as described on page 36.

2. Do not exceed a cable length of 10 m when connecting transistor outputs.

3. Burst immunity will no longer meet IEC/EN 61131-2 requirements if an Expansion I/O

Unit with DC inputs is connected to a CPU Unit with an AC power supply.

4. ZEN models complying with EC Directives also conform to the Common Emission

Standard (IEC/EN61131-2 clause 8). Radiated emission characteristics (10-m

regulations) may vary depending on the configuration of the control panel used, other

devices connected to the control panel, wiring, and other conditions. You must

therefore confirm that the overall machine or equipment complies with EC Directives.

Z211-E1-02A.book Page xxi Monday, May 21, 2007 12:38 PM

Countermeasures Countermeasure Exam les

xxii

Precautions

Relay Output Noise Reduction Methods

The ZEN conforms to EN 61131-2 of the EMC Directives. However, noise generated by

relay output switching may not satisfy these Standards. In such a case, a noise filter

must be connected to the load side or other appropriate countermeasures must be

provided external to the ZEN.

Countermeasures taken to satisfy the standards vary depending on the devices on the

load side, wiring, configuration of machines, etc. Following are examples of

countermeasures for reducing the generated noise.

Countermeasures

(Refer to EN61131-2 for more details.)

• Countermeasures are not required if the frequency of load switching for the whole

system with the ZEN included is less than 5 times per minute.

• Countermeasures are required if the frequency of load switching for the whole

system with the ZEN included is 5 times per minute or higher.

Countermeasure Examples

When switching an inductive load, connect an surge protector, diodes,

etc., in parallel with the load or contact as shown below.

Circuit Current Characteristic Required element

AC DC

CR method Yes Yes If the load is a relay or

solenoid, there is a time

lag between the moment

the circuit is opened and

the moment the load is

reset.

If the supply voltage is 12

to 48 V, insert the surge

protector in parallel with

the load. If the supply

voltage is 100 to 200 V,

insert the surge protector

between the contacts.

The capacitance of the

capacitor must be 1 to 0.5 µF

per contact current of 1 A and

resistance of the resistor must

be 0.5 to 1 Ω per contact

voltage of 1 V. These values,

however, vary with the load

and the characteristics of the

relay. Decide these values

from experiments, and take

into consideration that the

capacitance suppresses spark

discharge when the contacts

are separated and the

resistance limits the current

that flows into the load when

the circuit is closed again.

The dielectric strength of the

capacitor must be 200 to

300 V. If the circuit is an AC

circuit, use a capacitor with no

polarity.

Power

supply

Inductive

load

Z211-E1-02A.book Page xxii Monday, May 21, 2007 12:38 PM

ff: L E

xxiii

Precautions

Diode method No Yes The diode connected in

parallel with the load

changes energy

accumulated by the coil

into a current, which then

flows into the coil so that

the current will be

converted into Joule heat

by the resistance of the

inductive load.

This time lag, between

the moment the circuit is

opened and the moment

the load is reset, caused

by this method is longer

than that caused by the

CR method.

The reversed dielectric

strength value of the diode

must be at least 10 times as

large as the circuit voltage

value. The forward current of

the diode must be the same as

or larger than the load current.

The reversed dielectric

strength value of the diode

may be two to three times

larger than the supply voltage

if the surge protector is

applied to electronic circuits

with low circuit voltages.

Varistor method Yes Yes The varistor method

prevents the imposition of

high voltage between the

contacts by using the

constant voltage

characteristic of the

varistor. There is time lag

between the moment the

circuit is opened and the

moment the load is reset.

If the supply voltage is 12

to 48 V, insert the varistor

in parallel with the load. If

the supply voltage is 100

to 200 V, insert the

varistor between the

contacts.

---

Circuit Current Characteristic Required element

AC DC

Power

supply

Inductive

load

Power

supply

Inductive

load

Z211-E1-02A.book Page xxiii Monday, May 21, 2007 12:38 PM

xxiv

Precautions

Z211-E1-02A.book Page xxiv Monday, May 21, 2007 12:38 PM

SECTION 1

Outline

This section gives an outline of the ZEN, including example applications, the system

configurations and basic operations.

1-1 Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 Features and Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1-2-1 Features and System Configuration . . . . . . . . . . . . . . . . . . . . . . . . 8

1-2-2 List of Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1-3 Nomenclature and Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1-3-1 Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

1-3-2 Screen Transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

1-3-3 Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

1-4 Memory Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

1-5 Allocating I/O Bit Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

1-6 Preparations for Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Z211-E1-02A.book Page 1 Monday, May 21, 2007 12:38 PM

Economical Small-scale Automatic Control EDD 3 BED EDD EDD Easy Operation with an Inexpensive Controller N Na #770777” [ 92 0770”,” [ H2 009- Smaller Control Panels Less Assemblv and Wirinq Time Required for Control Panels

Outline Section 1-1

1-1 Outline

Economical, Small-scale Automatic Control

One CPU Unit provides 12 inputs and 8 outputs (with CPU Unit with

20 I/O points).

Easy Operation with an Inexpensive Controller

Ladder programming is possible directly from CPU Unit. When using

LED-type CPU Units (without LCD display) with Memory Cassettes

(optional), ladder programs can be easily copied.

Smaller Control Panels

The ZEN is very small at 90 x 70 x 56 mm (H x W x D) and mounts

essentially anywhere.

Note Dimensions are 90 x 122.5 x 56 mm (H x W x D) for CPU Units

with 20 I/O points.

Less Assembly and Wiring Time Required for Control Panels

Simple one-touch DIN Track mounting. Built-in timers and counters

so only power supply and I/O circuit wiring required.

Solid wires can be easily connected using only a screwdriver.

Water-supply facilities in apartments,

lighting control in offices.

70 mm

90 mm

Z211-E1-02A.book Page 2 Monday, May 21, 2007 12:38 PM

Power Failure Countermeasures

Outline Section 1-1

Refer to page 38.

Future System Expandability

I/O capacity can be expanded to up to 24 inputs and 20 outputs by

connecting 3 Expansion I/O Units.

Refer to page 9 and 37.

Power Failure Countermeasures

EEPROM backs up the program and system settings data when no

power is supplied to the ZEN.

Use a Battery Unit (optional) to back up work bits, holding timers,

counters, and date/time data.

Refer to page 110.

Easy Saving and Copying of Programs

Use an optional Memory Cassette to easily save and copy programs.

Refer to page 111.

20C1AR-A-V2

CPU Unit Expansion I/O Units (up to 3)

12 inputs/8 outputs + (4 inputs/4 outputs) × 3

Battery

Unit

Ladder program

data/settings.

Memory Cassette

Z211-E1-02A.book Page 3 Monday, May 21, 2007 12:38 PM

Programming and Monitoring from a Personal Computer /\ \PJ Greater Switchin Ca acit AC Inputs IfL Oinoo cocoons ioooooo i Easy Program Design WHO—l

Outline Section 1-1

Programming and Monitoring from a Personal Computer

Windows-based ZEN Support Software is available and provides a

complete simulation function.

Refer to page 114.

Greater Switching Capacity

The output contacts have 8-A switching capacity (250 VAC). All

contacts are independent (for CPU Units with 10 I/O points).

Refer to page 51.

AC Inputs

For CPU Units with AC power supply inputs, 100 to 240 VAC can be

directly connected.

Refer to page 41.

Easy Program Design

There are 3 different operations that can be set for bit outputs. Self-

holding bits also can be easily programmed.

Refer to page 65.

ZEN Support

Software

(CD-ROM)

8 A max.

250 V

LN IN0 IN1 IN2 IN3

L N NC I0 I1 I2 I3 I4 I5

Circuit protector

100 to 240 VAC

Normal operation

Set/reset operation

Alternate operation

Z211-E1-02A.book Page 4 Monday, May 21, 2007 12:38 PM

Complicated Timers without Additional Programming we; ‘1 Incremental and Decremenlal Counters Season- or Ba -de endenlO eralin Times

Outline Section 1-1

Complicated Timers without Additional Programming

Any of the 16 timers support 5 types of operation and 3 timing

ranges.

There are also 8 built-in holding timers that hold data during power

interruptions.

Refer to page 74.

Incremental and Decremental Counters

There are 16 built-in counters that can be switched between

incrementing and decrementing.

Use Comparators to enable programming multiple outputs from a

counter.

Counters: Refer to page 78.

Comparators: Refer to page 91.

Season- or Day-dependent Operating Times

CPU Units with built-in calendar and clock functions have 16 weekly

timers and 16 calendar timers. Seasonal control is possible using

calendar timers and day/time control is possible with weekly timers.

Weekly timers: Refer to page 81.

Calendar timers: Refer to page 86.

TIM

ON delay

OFF delay

One-shot pulse

Flashing pulse

Twin timer

0.01 to 99.99 s

1 s to 99 min 59 s

1 min to 99 h 59 min

CNT

Control number of cars entering

and leaving a car park.

MO FR

−

SA SU

−

For gardens, parks, and

recreational ponds.

Z211-E1-02A.book Page 5 Monday, May 21, 2007 12:38 PM

Dlrect Analog Inputs Easier Maintenance 12/2 11:25 am EMFTV‘ Longer Backlight for Dark Situations

Outline Section 1-1

Direct Analog Inputs

CPU Units with DC power supply inputs have 2 analog input points (0

to 10 V) and 4 analog comparators.

Refer to page 87.

Easier Maintenance

Use the display function in CPU Units to display user-specified

messages, the date, time, or other data. Button switches can also be

used as input contacts. Applications include usage as a simple

display operation panel.

Refer to page 96.

Longer Backlight for Dark Situations

The automatic cutout time for the backlight for CPU Units can be set

to 2, 10, or 30 minutes, or set to operate continuously. With the

display function, the backlight can also be set to turn ON when a

message is displayed.

Refer to page 106.

Temperature control for hot

houses and tanks. Prevent

freezing of swimming pools.

Z211-E1-02A.book Page 6 Monday, May 21, 2007 12:38 PM

Prevent chattering and Noise-related Malfunctions 4‘, 4|: Exporting Systems Overseas Programming Security

Outline Section 1-1

Prevent Chattering and Noise-related Malfunctions

Set the input filters to extend the filter timer and prevent malfunctions.

Refer to page 104.

Exporting Systems Overseas

Display for CPU Units is available in 6 languages. A Daylight Saving

Time (DST) function also supported.

Changing display language: Refer to page 57.

Daylight Saving Time (DST) settings: Refer to page 107.

Programming Security

Programs can be protected by setting a password.

Refer to page 102.

Filter timer

ENGLISH

JAPANESE

GERMAN

FRENCH

ITALIAN

SPANISH

3 9 5 4

PASSWORD

0000

RUN

Z211-E1-02A.book Page 7 Monday, May 21, 2007 12:38 PM

Standard LCD-type Economy-type, and Communications-type CPU Units Common Features

Features and Models Section 1-2

1-2 Features and Models

1-2-1 Features and System Configuration

The ZEN is small but has a wide range of functions and is easy to

use. The ZEN facilitates small-scale automatic control.

Standard LCD-type, Economy-type, and Communications-type

CPU Units

• Simple button-operated programming.

• Highly visible, backlit LCD.

• Adjustable automatic cutout time for the backlight.

• Six-language display.

• Display function for user-specified messages (4 lines x 12

characters), time, or timer, counter, or analog-converted value

displays.

• Button switches allowing operation buttons to be used as input

contacts.

• Built-in weekly and calendar timers to allow simple seasonal,

daily, or time-based operation.

• Remote monitoring via RS-485 communications

(Communications-type CPU Units).

Common Features

• Both 100 to 240-VAC and 12 to 24-VDC power supply models

available.

• Built-in analog comparator for temperature control and other

analog applications (provided on CPU Units with DC power

supply inputs, two analog inputs 0 to 10 V).

• Input filter settings to prevent noise-related malfunctions for both

CPU Units and Expansion I/O Units.

• Program and settings data backed up on built-in EEPROM.

• Programming using ladder diagrams.

• Password function to protect programs.

• Connect up to 3 Expansion I/O Units for a maximum of 24 inputs

and 20 outputs.

Z211-E1-02A.book Page 8 Monday, May 21, 2007 12:38 PM

Features and Models Section 1-2

CPU Unit

ZEN-BAT01

Battery Unit

Expansion I/O Units (up to 3 can be connected)

Programs can be

saved and copied

by using a

Memory Cassette

(optional).

Personal computer

connecting cable

ZEN-SOFT01-V4

ZEN Support

Software

Programs can be created, edited, saved, and printed,

and operation can be simulated using the ZEN

Support Software (optional).

ZEN-ME01

Memory

Cassette

Work bits, holding

timer data, counter

data, and

date/time data will

be backed up

during long-term

power supply

interruptions if a

Battery Unit

(optional) is

mounted.

Z211-E1-02A.book Page 9 Monday, May 21, 2007 12:38 PM

CPU Units with 10 IIO Points

Features and Models Section 1-2

1-2-2 List of Models

CPU Units with 10 I/O Points

Note Refer to Input Specifications on page 123 for input specifications.

Shape Power

supply/

input

voltage

Inputs Outputs Analog

inputs

Model number

With display

and

operation

buttons

Standard

LCD type

100 to

240 VAC,

50/60 Hz

inputs

Relays 4

outputs

No ZEN-10C1AR-A-V2

12 to 24 VDC Yes ZEN-10C1DR-D-V2

12 to 24 VDC Transis-

tors

Yes ZEN-10C1DT-D-V2

Economy

type

(Expansion

I/O Units

cannot be

connected)

100 to

240 VAC,

50/60 Hz

Relays No ZEN-10C3AR-A-V2

12 to 24 VDC Yes ZEN-10C3DR-D-V2

Communi-

cations type

100 to

240 VAC,

50/60 Hz

outputs

No ZEN-10C4AR-A-V2

12 to 24 VDC Yes ZEN-10C4DR-D-V2

LED type

Without display

100 to

240 VAC,

50/60 Hz

outputs

No ZEN-10C2AR-A-V2

12 to 24 VDC Yes ZEN-10C2DR-D-V2

12 to 24 VDC Transis-

tors

Yes ZEN-10C2DT-D-V2

Z211-E1-02A.book Page 10 Monday, May 21, 2007 12:38 PM

CPU Units with 20 IIO Points

Features and Models Section 1-2

CPU Units with 20 I/O Points

Note Refer to Input Specifications on page 123 for input specifications.

Shape Power

supply

Inputs Outputs Analog

inputs

Model number

With display

and operation

buttons

Standard

LCD type

100 to

240 VAC,

50/60 Hz

inputs

Relays 8

outputs

No ZEN-20C1AR-A-V2

12 to

24 VDC

Yes ZEN-20C1DR-D-V2

12 to

24 VDC

Tran-

sistors

Yes ZEN-20C1DT-D-V2

Economy

type

(Expansion

I/O Units

cannot be

connected)

100 to

240 VAC,

50/60 Hz

Relays No ZEN-20C3AR-A-V2

12 to

24 VDC

Yes ZEN-20C3DR-D-V2

LED type

Without display

100 to

240 VAC,

50/60 Hz

No ZEN-20C2AR-A-V2

12 to

24 VDC

Yes ZEN-20C2DR-D-V2

12 to

24 VDC

Tran-

sistors

Yes ZEN-20C2DT-D-V2

20C1AR-A-V2

20C2AR-A-V2

Z211-E1-02A.book Page 11 Monday, May 21, 2007 12:38 PM

Differences between LCD- and LED-type CPU Units

Features and Models Section 1-2

Differences between LCD- and LED-type CPU Units

Note 1. Standard LCD-type, Economy-type, and Communications-type

CPU Units: All models except ZEN-@C2@@-@-V2

2. LED-type CPU Units: ZEN-@C2@@-@-V2

3. Operations using ZEN Support Software are also possible.

Item LCD-type CPU Units

(See note 1.)

LED-type CPU Units

(See note 2.)

AC power

supply

DC power

supply

AC power

supply

DC power

supply

Program editing, parameter settings,

operation monitoring

Yes (Also possible with ZEN

Support Software.)

ZEN Support Software

required.

Operating mode switching Yes (Also possible with ZEN

Support Software)

ZEN Support Software

required.

Calendar and clock function Yes No

Bits Input, output, work,

holding bits

Ye s Ye s

Timer, holding timer,

counter

Ye s Ye s

High-speed counting with

8-digit counter

No Yes No Yes

Weekly timer, calendar

timer

Ye s N o

Analog comparator No Yes No Yes

Timer/counter comparator Yes Yes

Button switches Yes No

Display function Yes No

Settings Display language Yes (Also possible with ZEN

Support Software.)

Backlight cutout time Yes (Also possible with ZEN

Support Software.)

Input filters Yes (Also possible with ZEN

Support Software.)

ZEN Support Software

required.

Password Yes (Also possible with ZEN

Support Software.)

ZEN Support Software

required.

Memory

Cassette

functions

ZEN to Memory Cassette

transfer

Ye s N o

Memory Cassette to ZEN

transfer

Yes Yes (Automatic transfer

when power is turned ON.)

Memory Cassette

initialization

Ye s N o

Battery Unit connection Yes Yes

ZEN Support Software connection Yes Yes

Z211-E1-02A.book Page 12 Monday, May 21, 2007 12:38 PM

Expansion IIO Units Power Supgly Unit Programming Device 9%

Features and Models Section 1-2

Expansion I/O Units

Note 1. The ZEN-8E1AR cannot be connected to a CPU Unit with DC

power supply.

2. Refer to Input Specifications on page 123 for input specifications.

Power Supply Unit

Programming Device

No. of I/O

points

Inputs Outputs Connectable CPU

Units

Model

number

8 I/O 100 to

240 VAC,

50/60 Hz

4 inputs Relays 4

outputs

ZEN-@C1AR-A-V2

ZEN-@C2AR-A-V2

ZEN-10C4AR-A-V2

ZEN-8E1AR

(See note

1.)

12 to

24 VDC

4 inputs Relays 4

outputs

ZEN-@C1@@-@-V2

ZEN-@C2@@-@-V2

ZEN-10C4AR-A-V2

ZEN-8E1DR

12 to

24 VDC

4 inputs Tran-

sistors

outputs

ZEN-8E1DT

Name and appearance Specifications Model number

Switching Power supply

Unit

Input voltage: 100 to 240 VAC

Output voltage: 24 VDC

Output capacity: 1.3 A

Capacity: 30 W

ZEN-PA03024

Name and appearance Functions Model number

ZEN Support Software Runs on Windows 95, 98, ME, 2000, XP, or

NT4.0 Service Pack 3 (CD-ROM)

Used for offline programming, all parameter

settings, program transfers, and printing.

ZEN-SOFT01-V4

Personal Computer

Connecting Cable

Connects the computer and ZEN when the ZEN

Support Software is used.

(Cable length: 2 m)

ZEN-CIF01

Z211-E1-02A.book Page 13 Monday, May 21, 2007 12:38 PM

Optional Products

Features and Models Section 1-2

Optional Products

Name and

appearance

Functions Model number

Memory Cassette EEP-ROM

Used to save and copy programs.

ZEN-ME01

Battery Unit Uses a battery to back up programs and data.

Mount a Battery Unit if the loss of calendar, clock,

holding bit, holding timer, and counter present values

will cause problems in systems with long power

interruptions. (Battery life: 10 years minimum)

ZEN-BAT01

Training Kit This kit is recommended for first-

time users. Contains the

following products and manuals

as a kit.

CPU Unit

ZEN-SOFT01-V4 ZEN Support

Software

ZEN-CIF01 Personal Computer

Connecting Cable

ZEN Operation Manual (Z211)

ZEN Support Software Operation

Manual (Z184)

ZEN-10C1AR-A-V2

CPU Unit

(AC power supply)

ZEN-KIT01-EV4

ZEN-10C1DR-D-V2

CPU Unit

(DC power supply)

ZEN-KIT02-EV4

Z211-E1-02A.book Page 14 Monday, May 21, 2007 12:38 PM

Standard LCD- e Econom -t e and Communications- CPU Units 0 a. 50$§§3o w F 93‘ 0 $3 25610.33“ Essence h: gm m El 93 1? £9 29 199 292. o

Nomenclature and Basic Operation Section 1-3

1-3 Nomenclature and Basic Operation

1-3-1 Nomenclature

Standard LCD-type, Economy-type, and Communications-type

CPU Units

Models with 10 I/O Points

Note Economy-type CPU Units do not have an Expansion Unit

connector. Do not remove the Expansion Unit connector cover on

these CPU Units.

Models with 20 I/O Points

Note Economy-type CPU Units do not have an Expansion Unit

connector. Do not remove the Expansion Unit connector cover on

these CPU Units.

Left Side

Battery Unit connector

(Remove the seal to

connect the Battery Unit.)

Front

Power supply

terminals Input terminals

LCD Operation

buttons

Output terminals

ZEN Support Software connector

(also used for Memory Cassette.)

Right Side

Expansion Unit

connector cover.

(See note.)

Remove this cover to

connect Expansion Unit.

ZEN Support Software connector

(also used for Memory Cassette.)

20C1AR-A-V2

Left Side

Battery Unit connector

(Remove the seal when

connecting the Battery Unit.)

Front

Power supply

terminals Input terminals

LCD Operation

buttons

Output terminals

Right Side

Expansion Unit

connector cover.

ZEN Support Software connector

(also used for Memory Cassette.) Remove this cover to

connect Expansion Unit.

Z211-E1-02A.book Page 15 Monday, May 21, 2007 12:38 PM

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Nomenclature and Basic Operation Section 1-3

Display Screen and Operation Button

Icon Meanings

LCD ALT ButtonDEL Button

Cursor

Buttons

ESC Button OK Button

RUN ERR ▲ ▼

Icon Meaning

RUN Displayed while in RUN mode.

ERR Indicates an error.

▲Displayed when there is a higher-level menu or ladder

program line than the one currently displayed.

▼Displayed when there is a lower-level menu or ladder

program line than the one currently displayed.

Displayed when a password has been set.

Z211-E1-02A.book Page 16 Monday, May 21, 2007 12:38 PM

Nomenclature and Basic Operation Section 1-3

Operation Button Names and Operations

Button Function

Menus Writing ladder program Setting parameters Button switch

(See page 99.)

DEL

--- Deletes inputs, outputs,

connection lines, and blank

lines.

--- B6 ON

ALT

--- Switches between normally

open and normally closed

conditions.

Changes to connection line

write mode.

Inserts a line.

--- B7 ON

Moves the

cursor up and

down.

Moves the cursor up and

down.

Selects bit types and

functions.

Moves the cursor up

and down.

Changes numerals

and parameters.

B5 ON

Down

B2 ON

Left

--- Moves the cursor right and

left.

Moves the cursor

right and left.

B3 ON

Right

B4 ON

ESC

Returns to the

screen.

Cancels the setting and

returns to the previous

operation.

Cancels the setting

and returns to the

previous operation.

B0 ON

Selects the

menu item at

the cursor

position.

Confirms the setting. Confirms the setting. B1 ON

Z211-E1-02A.book Page 17 Monday, May 21, 2007 12:38 PM

LED-type CPU Units without Display 0 6o bébﬁééo 21113me 9 0:9 “29 319 o

Nomenclature and Basic Operation Section 1-3

LED-type CPU Units without Display

Models with 10 I/O Points

LED Indicators

Name Color Meaning

POWER Green Lit Power supplied

Not lit No power

RUN Green Lit Operating (RUN)

Not lit Stopped (STOP)

ERROR Red Lit Error

Not lit Normal

Left Side Front

Power supply

terminals Input terminals

Right Side

Battery Unit connector

(Remove the seal to

connect the Battery

Unit.)

Output terminals

Personal computer

connector (also used for

Memory Cassette.)

LED indicators

Expansion Unit

connector cover

Remove this cover to

connect Expansion I/O Unit.

Z211-E1-02A.book Page 18 Monday, May 21, 2007 12:38 PM

,1 Expansion 110 Units .93 £9 .29 199 Beacon g‘e‘

Nomenclature and Basic Operation Section 1-3

Models with 20 I/O Points

LED Indicators

Expansion I/O Units

Name Color Meaning

POWER Green Lit Power supplied

Not lit No power

RUN Green Lit Operating (RUN)

Not lit Stopped (STOP)

ERROR Red Lit Error

Not lit Normal

20C2AR-A-V2

Left Side Front

Power supply

terminals Input terminals

Right Side

Battery Unit

connector

(Remove the

seal to connect

the Battery Unit.)

Output terminals

Personal computer

connector (also used for

Memory Cassette.)

LED indicators

Expansion Unit

connector cover

Remove this cover to

connect Expansion I/O Unit.

Left Side Front

Input terminals

Right Side

Expansion Unit

connector

Output terminals Expansion Unit connector cover.

Remove this cover to

connect Expansion I/O Unit.

Z211-E1-02A.book Page 19 Monday, May 21, 2007 12:38 PM

H015: 15 SW? Isuuuaua manna ++ npu: 1:- 5w? mooooooooo v: ummmmu ++ non: 15 RUN K: wounoouoo on on v: munmunm ++ ED 6:3 0 0 H H e v 9

Nomenclature and Basic Operation Section 1-3

1-3-2 Screen Transitions

STOP Mode

When leaving RUN Mode

When Expansion I/O Unit

is connected.

Display Function Screen

Note: The display will be

blank if the display function is

not being used.

(User-

specified

message)

RUN Mode

When power is turned ON

When Expansion I/O Unit

is connected.

Display Function Screen

Note: The display will be

blank if the display function is

not being used.

(User-

specified

message)

STOP Mode

PROGRAM

RUN

PARAMETER

SET CLOCK

PARAMETER

SET CLOCK

LANGUAGE

OTHER

RUN Mode

MONITOR

STOP

PARAMETER

SET CLOCK

RUN

PARAMETER

SET CLOCK

LANGUAGE

OTHER

RUN

Z211-E1-02A.book Page 20 Monday, May 21, 2007 12:38 PM

Display Screens it: +5 “SJ 1 0000000000 00 ummu <7 s:="" nun:="" 15="" steip="" x:="" oooooooooo="" v’:="" seddwdee="" ‘0="" 0000000000="" 00="">

Nomenclature and Basic Operation Section 1-3

Display Screens

Main Screen

When One or More Expansion I/O Units Are Connected

I0 I1 I2 I3 I4 I5

( : OFF/●: ON)

Q0 Q1 Q2 Q3

@@@@

Q0 Q1 Q2 Q3

@@@@

Q4 Q5 Q6 Q7

@@@@

Ia Ib

I0 I1 I2 I3 I4 I5 I6 I7 I8 I9

Day

Time (min:s)

Operating mode CPU input bit (I) status

CPU output bit (Q) status

(@: OFF/■: ON)

CPU Units

with 10 I/O

points

CPU Units

with 20 I/O

points

CPU Units

with 10 I/O

points

CPU Units

with 20 I/O

points

X0 X1 X2 X3 X4 X5 X6 X7 X8 X9

Xa Xb

( : OFF/●: ON)

Ya Yb

Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9

@@@@@@@@@@

Expansion I/O Unit input bit (X) status

Expansion I/O Unit output bit (Y) status

(@: OFF/■: ON)

Note: The display depends

on the number of input

points on the connected

Expansion I/O Units.

Note: The display depends

on the number of output

points on the connected

Expansion I/O Units.

Day display

SU: Sunday

MO: Monday

TU: Tuesday

WE: Wednesday

TH: Thursday

FR: Friday

SA: Saturday

Z211-E1-02A.book Page 21 Monday, May 21, 2007 12:38 PM

Menu Screen Conﬁguration an G «L 0 «a L G ‘7 L

Nomenclature and Basic Operation Section 1-3

Menu Screen Configuration

COM SPEED

DATA BIT

STOP BIT

PARITY

▲

MONITOR

STOP

PARAMETER

SET CLOCK

▼

RUN Mode Ladder Monitor Screen

The ON/OFF status of input bits can be checked by

monitoring the ladder program.

Switches to STOP mode.

The operation status of the timers, counters, and analog

comparators can be monitored and the settings changed

during operation. Refer to page 27.

STOP Mode Ladder Program Edit Screen

(Refer to page 25.)

PROGRAM

RUN

PARAMETER

SET CLOCK

▼

EDIT PROG

DELETE PROG

CASSETTE

Creates and edits

ladder program.

Deletes ladder program and parameters.

Memory Cassette Operation (Refer to page 111.)

SAVE(CPU-MC)

LOAD(MC-CPU)

ERASE

Transfers programs

between ZEN and

the Memory Cassette

and initializes the

Memory Cassette.

Switches to RUN mode.

Note: Displayed only when a Memory

Cassette is mounted.

Changes the settings for timers, counters, and analog comparators.

(Refer to page 30.)

Date and Time Settings (Refer to page 58.)

PROGRAM

RUN

PARAMETER

SET CLOCK

▼

SET CLOCK

SUMMER TIME

SET CLOCK

yy/mm/dd

00/01/01

00:03(SA)

Sets the date and

time.

Set when shipping to countries that

use summer time. (Refer to page 107.)

Display Language Settings (Refer to page 57.)

SET CLOCK

LANGUAGE

ENGLISH

Communications Settings (Models with Communications Only)

PARAMETER

SET CLOCK

LANGUAGE

RS485

▲ ▼

NODE NO

COM SPEED

DATA BIT

STOP BIT

▼

Settings are made for communications with

external devices. (Refer to the ZEN

Communications Manual (Z212).)

The display language can be changed.

English, Japanese, German, French, Italian, and

Spanish

EDIT PROGRAM

YES

▲ ▼

Other Settings

PARAMETER

SET CLOCK

LANGUAGE

OTHER

▲

PASSWORD

BACKLIGHT

INPUT FILTER

SYSTEM INF

▼

Other settings can be made. Refer to the following

page for details.

Select YES with

RUN

Z211-E1-02A.book Page 22 Monday, May 21, 2007 12:38 PM

Nomenclature and Basic Operation Section 1-3

Other Submenus

PASSWORD

BACKLIGHT

INPUT FILTER

SYSTEM INF

▼

PASSWORD

0000

Setting Passwords (Refer to page 102.)

Set a password when you want to protect

programs from being read. The password

setting range is 0000 to 9999.

BACKLIGHT

INPUT FILTER

SYSTEM INF

MODEM INI

▲

BACKLIGHT

2min

Changing Cutout Time for Backlight (Refer to page 106.)

Set the automatic cutout time for the backlight

in the LCD screen.

2 min, 10 min, 30 min, Always ON

INNER

EXP1

EXP2

EXP3

Setting Input Filters (Refer to page 104.)

Set the input filters to ON or OFF for the CPU

Unit or Expansion I/O Units. Set to ON when

noise or chattering may affect operation.

“EXP1” to “EXP3” will be displayed depending

on the number of Expansion I/O Units

connected.

U03.00

060201

INT:I06O04

EX1:I04O04

Reading System Information (Refer to page 108.)

Read system information, such as the CPU

Unit software version or the date it was

created, the number of I/O points on the CPU

Unit or the Expansion I/O Units, and whether or

not LCD, RTC, or analog input functions are

supported.

▼

EX2:I04O04

EX3:I04O04

RMT:I00000

LCD:YES

▲ ▼

RMT:I00000

LCD:YES

RTC:YES

ADC:YES

▲

For future expansion. Do not set.

Z211-E1-02A.book Page 23 Monday, May 21, 2007 12:38 PM

Menu Select n Example nu ma U n + 96 >- >§

Nomenclature and Basic Operation Section 1-3

1-3-3 Basic Operation

Menu Selection Example

Use the Up/Down Buttons to move the

cursor.

Press the OK Button to select the flashing

menu. The settings will flash on a reversed

display.

Settings cannot be changed during reversed

display.

Press the OK Button to change from a

highlighted cursor to a flashing cursor.

Settings can now be changed.

Use the Up/Down Buttons to change the

setting.

Use the Up Button to select GERMAN.

RUN

PARAMETER

SET CLOCK

LANGUAGE

▲ ▼

Main menu

display

Flashing cursor

LANGUAGE

Highlighted cursor

ENGLISH

LANGUAGE

ENGLISH

Flashing cursor

LANGUAGE

GERMAN

LANGUAGE

SET?

OK/ESC

GERMAN

A confirmation message will be

displayed asking if you want to

change to German display.

RUN

PARAMETER

KALENDER

SPRACHE

▲ ▼

Press the OK Button

to change from

English to German.

RUN

PARAMETER

SET CLOCK

LANGUAGE

▲ ▼

Press the ESC Button to

cancel the change and return

to the previous screen.

Z211-E1-02A.book Page 24 Monday, May 21, 2007 12:38 PM

Example Operation in the Ladder Program Edit Screen 'T F m [a an ' II 9 Ma an 3 9 0 0 MI BB II N I BB II I N] [a ED 9 I an

Nomenclature and Basic Operation Section 1-3

Example Operation in the Ladder Program Edit Screen

The highlighted cursor will appear in the

initial write position. During highlighted

cursor display, the cursor can be moved to

the input or output write positions.

Up/Down Buttons: Move the highlighted

cursor up and down.

Left/Right Buttons: Move the highlighted

cursor Left/Right.

Press the OK Button at the input write

position to display the input default setting IO

and the normally open condition symbol. “I”

will flash.

• Flashing Cursor at the I Position

Up/Down Buttons: Change the bit type.

Right Button: Moves the flashing cursor

to the right.

OK Button: Sets the bit type and moves

the flashing cursor to the bit address

position.

• Flashing Cursor at the 0 Position

Up/Down Buttons: Change the bit

address.

OK Button: Completes the writing of the

bit.

• Switching between Normally Open and

Normally Closed Conditions

You can use the ALT Button to switch

between the N.O. and N.C. conditions,

regardless of the position of the flashing

cursor.

When the first input has been written, the

highlighted cursor moves to the next input

position.

Use the above procedure to enter program

input conditions in series.

When writing serial inputs, the connecting

line between inputs is drawn automatically.

Select

Program/

Edit.

Line No.

cursor

Highlighted cursor

Z211-E1-02A.book Page 25 Monday, May 21, 2007 12:38 PM

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Nomenclature and Basic Operation Section 1-3

Press the ALT Button with the highlighted

cursor in the input writing position to change

the cursor to a flashing left arrow to enable

connecting lines to be drawn.

Up/Down Buttons: Draw vertical connecting

lines.

Left/Right Buttons: Draw horizontal

connecting lines.

Press the Right Button twice to draw a line to

the output bit. The cursor will change to a

highlighted cursor at the output bit write

position.

Press the OK Button at the output bit write

position to display the default output Q0. Q

will flash.

• Flashing Cursor at the Q (Bit Type)

Position

Up/Down Buttons: Change the type of

output

Right/Left Buttons: Move the flashing

cursor.

OK Button: Sets the bit type and moves

the flashing cursor to the bit address

position.

• Flashing Cursor at the (Additional

Output Function) Position

Up/Down Buttons: Selects the additional

output function

OK Button: Sets the additional output

function and moves the flashing cursor

to the bit address position.

• Flashing Cursor at the 0 (Bit Address)

Position

Up/Down Buttons: Select the bit address

OK Button: Completes the output write.

Press the OK Button to complete the bit write

and to move the highlighted cursor to the first

input position ON the next line.

Press the ESC Button to complete the writing

of the ladder program and to return to the

menu screen.

▼

Z211-E1-02A.book Page 26 Monday, May 21, 2007 12:38 PM

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Nomenclature and Basic Operation Section 1-3

Example Parameter Settings Screen Operation

When PA R A M E T E R is selected, the settings

for bits that are being used by the ladder

program are displayed.

(1) Selecting Parameters to Display

Press the OK Button to change the

highlighted cursor to a flashing cursor.

Use the Up/Down Buttons to select another

timer.

When multiple parameters of the same type

have been selected, use the Up/Down

Buttons to scroll through the numbers.

Press the Left Button to switch to another

type, move the flashing cursor to the bit type

position and use the Up/Down Buttons to

select the bit type.

Move the flashing cursor to the bit type

position and use the Up/Down Buttons to

select another bit type.

(2) Setting and Changing Parameters

Use the Left/Right Buttons to move the

highlighted cursor to the parameter to be set.

Press the OK Button to confirm the set

position. The cursor will change to a flashing

cursor.

Use the Up/Down Buttons to set the

parameter.

Press the OK Button to confirm the setting.

Select

Parameters

on menu

screen.

Z211-E1-02A.book Page 27 Monday, May 21, 2007 12:38 PM

9 F35 x ms 9 G 0” RES )9. ﬂ FE x ms 9 - RES mm 0 m x was 9 «9e :23 a... m x was a m: RES 12.5'

Nomenclature and Basic Operation Section 1-3

Use the Left/Right or Up/Down Buttons to

move the highlighted cursor to the parameter

to be set.

Press the OK Button to confirm the set

position. The cursor will change to a flashing

cursor.

Use the Left/Right Buttons to select the digit

to be set.

Use the Up/Down Buttons to change the

value of each digit.

Press the OK Button to confirm the setting.

Press the ESC Button to complete the

settings.

Note If the ESC Button is pressed while ladder program or parameter

settings are being input, the input to that point will be canceled

and the settings will return to the original settings.

Z211-E1-02A.book Page 28 Monday, May 21, 2007 12:38 PM

IIO Work and Internal Holding Bits 4>—DDD«

Memory Areas Section 1-4

1-4 Memory Areas

I/O, Work, and Internal Holding Bits

Note 1. Output bit Q3 of CPU Units with communications cannot be

output externally. It can be used as a work bit.

2. The following additional functions can be selected for bit outputs.

Name Type Bit

addresses

No.

bits

Function Ladder

programs

Page

CPU Unit

input bits

I 0 to 5 6 CPU Units

with 10 I/O pts

Reflect the ON/OFF

status of the input

devices connected to

the CPU Unit input

terminals.

N.O./N.C.

inputs

0 to b 12 CPU Units

with 20 I/O pts

Expansion

I/O Unit

input bits

X 0 to b 12 Reflect the ON/OFF status of the input

devices connected to the Expansion

I/O Unit input terminals.

Button

input bits

B 0 to 7 8 Turn ON when the operation buttons

are pressed in RUN mode. Cannot be

used for LED-type CPU Units.

Analog

comparator

bits

A 0 to 3 4 Output the comparison result for

analog inputs. Can only be used for

models with a 24-VDC power supply.

Compara-

tor bits

P 0 to f 16 Compare the present value of timers

(T), holding timers (#), and counters

(C), and outputs the comparison result.

8-Digit

comparator

bits

G 0 to 3 4 Compare the present value of 8-digit

counters (F) with a constant and

outputs the comparison result

CPU Unit

output bits

Q 0 to 3 4 CPU Units

with 10 I/O pts

(See note 1.)

Output the ON/OFF

status of the output

bits to the outputs

devices connected to

the CPU Unit.

N.O./N.C.

inputs

Outputs

(See note

2.)

0 to 7 8 CPU Units

with 20 I/O pts

Expansion

I/O Unit

output bits

Y 0 to b 12 Output the ON/OFF status of the output

bits to the outputs devices connected to

the Expansion I/O Unit.

Work bits M 0 to f 16 Can only be used within the program.

Cannot output to an external device.

Holding

bits

H 0 to f 16 Same as for work bits however the

holding bits maintain ON/OFF status

when power is turned OFF.

Execution condition

Bit address

Bit type

Additional function ([, S, R, A)

Z211-E1-02A.book Page 29 Monday, May 21, 2007 12:38 PM

Timers and Counters Timer Types

Memory Areas Section 1-4

Timers and Counters

Timer Types

Normal output [ Turns ON or OFF according to the ON/OFF status of the execution

condition.

Set/Reset S (set) Holds ON status after the execution condition turns ON once.

R (reset) Holds OFF status after the execution condition turns ON once.

Alternate A Alternates between ON and OFF whenever the execution condition

turns ON (input latch operation).

Name Type Bit ad-

dresses

No. of

timers/

counters

Function Use in

ladder

programs

Page

Timer T 0 to f 16 Can be switched between ON

delay, OFF delay, one-shot, flashing

pulse, and twin timer

operation.(See note.)

N.O./N.C.

condition

Holding

timer

# 0 to 7 8 Hold the present value during

counting even if the trigger input or

power supply is turned OFF.

Continues the timing when the

trigger input or power supply is

turned ON again.

Counter C 0 to f 16 Four-digit reversible counters that

can be incremented and

decremented.

8-Digit

counter

F 0 1 An eight-digit reversible counter

that can be incremented and

decremented. CPU Units with DC

power supplies support a high-

speed counter up to 150 Hz.

Weekly

timer

@ 0 to f 16 Can be switched between normal

operation, operation between days,

and pulse output operation. Cannot

be used for LED-type CPU Units.

Calendar

timer

0 to f 16 Can turn ON or OFF during a

specified date period. Cannot be

used for LED-type CPU Units.

XON delay Times down while the trigger input is ON and turns ON the timer bit when the set

time is reached.

■OFF

delay

Turns ON the timer bit while the trigger input is ON, starts timing down when the

trigger input turns OFF, and turns OFF the timer bit when the set time is reached.

OOne-shot Turns ON the timer bit for the set period when the trigger input changes from OFF

to ON only.

FFlashing

pulse

Timer bit repeatedly turns ON/OFF at set intervals while the trigger input is ON.

WTwin Timer bit repeatedly turns ON/OFF at set intervals while the trigger input is ON. The

ON time and OFF time can be set separately.

Z211-E1-02A.book Page 30 Monday, May 21, 2007 12:38 PM

Disglay Bits 4% DP

Memory Areas Section 1-4

Display Bits

Function switching

Name Type Bit

addresses

No.

bits

Function Use in

ladder

programs

Page

Display D 0 to f 16 Display user-specified

character strings, times, timer

present values, counter present

values, or analog-converted

values. Cannot be used for

LED-type CPU Units.

Output 96

D Display

C Clear display

DDisplay No.

Function switching

Z211-E1-02A.book Page 31 Monday, May 21, 2007 12:38 PM

Connection Example or 4-point Exgan ' n ngut Unit 4-point Exnansion Outpu Unt and 8-poin Exnans on IIO Unlt CPU Units with 10 Ill) Points

Allocating I/O Bit Numbers Section 1-5

1-5 Allocating I/O Bit Numbers

For CPU Units with 10 I/O points, the input bit addresses I0 to I5 and

output bit addresses Q0 to Q3 (Q0 to Q2 for CPU Units with

communications) are always allocated to the CPU Unit.

For CPU Units with 20 I/O points, the input bit addresses I0 to Ib and

output bit addresses Q0 to Q7 are always allocated to the CPU Unit.

Up to 3 Expansion I/O Units can be added and input bit addresses X0

to Xb and output bit addresses Y0 to Yb are allocated in the order the

Units are connected.

Connection Example for 4-point Expansion Input Unit, 4-point

Expansion Output Unit, and 8-point Expansion I/O Unit

■CPU Units with 10 I/O Points

Note Output bit Q3 of CPU Units with communications cannot be

output externally. It can be used as a work bit.

■CPU Units with 20 I/O Points

Input bit

address

CPU Unit

(10 I/O points)

Expansion

I/O Unit 1

Expansion

I/O Unit 2

Expansion

I/O Unit 3

Output bit

address

I0 I1 I2 I3 I4 I5 X0 X1 X2 X3 X8 X9 Xa Xb

OUT

Q0 Q1 Q2 Q3 Y4 Y5 Y6 Y7 Y8 Y9 Ya Yb

X4 X5 X6 X7

OUT

Y0 Y1 Y2 Y3

(See

note.)

Expansion

I/O Unit 1

(8 I/O points)

Expansion

I/O Unit 2

(8 I/O points)

Expansion

I/O Unit 3

(4 inputs)

Input bit

address

Output bit

address

I0 I1 I2 I3 I4 I5 X0 X1 X2 X3 X4 X5 X6 X7

OUT

Q0 Q1Q2 Q3 Y0 Y1 Y2 Y3 Y4Y5 Y6 Y7

CPU Unit

(20 I/O points)

I6 I7 I8 I9 Ia Ib X8 X9 Xa Xb

OUT

Q4 Q5Q6 Q7

OUT

Y8Y9 Ya Yb

Z211-E1-02A.book Page 32 Monday, May 21, 2007 12:38 PM

0&65 ravwl.Ln * ,9 9,9 "u :29 0 WW of“) 5&‘oéidéé

Preparations for Operation Section 1-6

1-6 Preparations for Operation

Mount ZEN to Control Panels

The ZEN can be mounted to either a

DIN Track or directly onto the surface

of the control panel. Refer to page 36.

Connect Power Supply, Input, and Output

Devices

Wire the ZEN to the power supply, input,

and output devices. Refer to page 38.

Make Initial Settings

Make the settings required before

programming, such as date, time, and

display language. Refer to pages 57

and 58.

Write Program

Input the ladder program, including

timers, counters, and other parameters.

Use the ZEN Support Software when

using the LED-type CPU Units (without

LCD.) Refer to page 60.

Check Program Execution

Perform trial operation before starting

actual operation and check that the

system is operating correctly. Refer to

page 69.

Save Program

Debugged programs and all parameters

should be saved to a Memory Cassette

or ZEN Support Software to prevent

loss of the data. Refer to page 111.

Actual Operation

DIN Track

Inputs

Power

supply

Output

Load

Operation

buttons

ON OFF

ZEN-ME01

Memory Cassette

Z211-E1-02A.book Page 33 Monday, May 21, 2007 12:38 PM

Preparations for Operation Section 1-6

Z211-E1-02A.book Page 34 Monday, May 21, 2007 12:38 PM

SECTION 2

Installation and Wiring

This section explains how to mount and wire the ZEN CPU Units and Expansion I/O Units.

2-1 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

2-1-1 Attention: Meeting the EC Low Voltage Directive . . . . . . . . . . . . 36

2-1-2 Connecting Expansion Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

2-1-3 Installation Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

2-2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

2-2-1 External Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

2-2-2 Connectable Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2-2-3 Wiring Power Supply and Input Lines. . . . . . . . . . . . . . . . . . . . . . 40

2-2-4 Wiring CPU Units with AC Power Supplies . . . . . . . . . . . . . . . . . 41

2-2-5 Wiring CPU Units with DC Power Supplies . . . . . . . . . . . . . . . . . 44

2-2-6 Wiring Output Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Z211-E1-02A.book Page 35 Monday, May 21, 2007 12:38 PM

Protection by Cover Protection by Location Protection by Barrier ai

Mounting Section 2-1

2-1 Mounting

2-1-1 Attention: Meeting the EC Low Voltage Directive

The ZEN is an open-structure device. The right side of the enclosure (i.e., the

vertical surface where the Expansion Unit connector cover is located) does

not provide the mechanical strength against impact of a 500-g, 50-mm-dia.

steel ball from a height of 1,300 mm, as required in IEC/EN 61131-2.

Therefore, the ZEN must always be mounted inside a control panel and the

installation method must assure protection from such impact by using one of

the following installation methods.

Protection by Cover

Protection by Location

Protection by Barrier

2-1-2 Connecting Expansion Units

Up to 3 Expansion Units can be connected.

▲

Cover plate

(e.g., control panel)

Cover Hole Dimensions

N = Number of Expansion I/O Units

CPU Unit A (mm) B (mm)

CPU Unit with 10 I/O points 47 70 + N × 35 + 2

CPU Unit with 20 I/O points 47 122.5 + N × 35 + 2

The area that needs to be protected against

mechanical impact. Install the ZEN close to the wall

of the control panel or in another location that will

protect it from mechanical impact.

▲

Bottom View

Barrier

Insert insulation between the barrier and the ZEN if the

barrier is made of metal or other conductive material.

If another device is used as the barrier, use a class I device.

Remove the cover screw with a Phillips screwdriver, insert a flat-blade

screwdriver into the gap around the cover, and remove the cover.

1 Remove the Expansion Unit connector cover from the side

of the CPU Unit.

2 Insert the guides on the Expansion Unit into the CPU Unit.

3 Press the Expansion Unit and the CPU Unit together until

you can hear the connectors mate completely.

Phillips screwdriver Flat-blade screwdriver

CAUTION

Electrical shock may occur. Do not remove the Expansion Unit connector

cover unless an Expansion Unit will be permanently installed.

Z211-E1-02A.book Page 36 Monday, May 21, 2007 12:38 PM

Mountin Direction ig K? E vague Mountin to DIN Track

Mounting Section 2-1

2-1-3 Installation Method

Always mount the ZEN inside a control panel. The ZEN can either be

mounted to the surface of the control panel or onto a DIN Track.

Mounting Direction

Mounting to DIN Track

• Use DIN Track with a width of 35 mm (OMRON model PFP-50N,

PFP-100N, or PFP-100N2).

• Use End Plates (OMRON model PFP-M) to secure the ZEN on

the DIN Track.

Standard (Vertical) installation Horizontal installation

1 Pull down the hooks

on the bottom of the

ZEN.

2 Hang the slot at the

back of the ZEN on to

the top of the DIN

Track.

3 Attach the ZEN to the

DIN Track.

4 Push up the locking

hooks on the bottom

of the ZEN to lock the

ZEN in place.

Z211-E1-02A.book Page 37 Monday, May 21, 2007 12:38 PM

Surface Mounting Hanging Ducts

Wiring Section 2-2

Surface Mounting

With an Expansion Unit, pull out the DIN Track mounting hooks on

the top and bottom of the Unit to secure the Unit with screws.

2-2 Wiring

2-2-1 External Wiring

Do not run ZEN I/O lines in the same duct or conduit as power lines.

■Hanging Ducts

Leave at least 300 mm between the power cables and the I/O or

control wiring, as shown in the following diagram.

Unit AScrew

size

Tightening

torque

CPU Units with 10 I/O Points 60 M4 1.03 N·m max.

CPU Units with 20 I/O Points 112.5

Expansion I/O Units --- M3 0.46 N·m max.

A 22.5 35 35

Z211-E1-02A.book Page 38 Monday, May 21, 2007 12:38 PM

Floor Ducts Conduits in Pow

Wiring Section 2-2

■Floor Ducts

Leave at least 200 mm between the wiring and the top of the duct, as

shown in the following diagram.

■Conduits

Separate the ZEN I/O lines, power and control lines, and power

cables, as shown in the following diagram.

Do not run ZEN I/O lines in the same duct or conduit as power lines.

I/O lines

Control cables and

power lines

Power cables

300 mm min.

200 mm min.

Metal plate (iron)

I/O lines Control cables and

power lines Power cables

I/O lines

Control cables and

power lines Power cables

Z211-E1-02A.book Page 39 Monday, May 21, 2007 12:38 PM

:‘j

Wiring Section 2-2

2-2-2 Connectable Wires

Note When using a 2-line connection, use wires of the same size for

both lines.

• Strip the sheath back 6.5 mm.

Note When using a 2-line connection, use terminals of the same size

for both lines.

• Use a flat-blade screwdriver to tighten the terminal block screws

and tighten the screws to a torque of 0.565 to 0.6 N·m (5 to 5.3

in-lb).

• Recommended screwdriver: SZS0.6X3.5 or SZF1-0.6X3.5

manufactured by Phoenix Contact

2-2-3 Wiring Power Supply and Input Lines

Precautions for Correct Use

• Do not use terminals that are not connected as relay terminals.

One-line connection 0.2 to 2.5 mm2

(Equivalent to AWG24 to AWG14)

Two-line connection 0.2 to 0.75 mm2

(Equivalent to AWG24 to AWG19)

6.5 mm

CAUTION

Fires may occasionally occur. Tighten the terminal block screws to a

torque of 0.565 to 0.6 N·m (5 to 5.3 in-lb).

Z211-E1-02A.book Page 40 Monday, May 21, 2007 12:38 PM

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Wiring Section 2-2

2-2-4 Wiring CPU Units with AC Power Supplies

■Wiring the CPU Unit Power Supply

• To prevent voltage drops due to starting currents and inrush

currents in other devices, wire the ZEN power supply circuit

separately from other power circuits.

• When using more than one ZEN, to prevent voltage drops due to

inrush current and circuit-breaker malfunctions, it is

recommended that each one is wired separately.

• To prevent the influence of noise from power lines, twist the

power lines. Wiring via a 1-to-1 isolation transformer is also

effective.

• Use wires that are thick enough to allow for voltage drops and

current variations within the allowable range.

• Include a circuit protector or breaker installed separately from

other circuits in the power supply circuit for the ZEN.

Power Supply and Input Circuits

CPU Units and Expansion I/O Units with 10 I/O Points

L N

Circuit

protector

Input device

Expansion I/O Unit

(AC input type)

AC power supply

Isolation

transformer

CPU Unit (AC power supply type)

L N IN0 IN1 IN2 IN3

L N NC I0 I1 I2 I3 I4 I5

100 to 240 VAC, 50/60 Hz

Circuit

protector Input device

CPU Unit with 10 I/O points ZEN-8E1AR Expansion I/O Unit

(AC input type)

Z211-E1-02A.book Page 41 Monday, May 21, 2007 12:38 PM

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Wiring Section 2-2

CPU Units with 20 I/O Points and Expansion I/O Units

Connecting Expansion I/O Units with DC Inputs

Precautions for Safe Use

• Supply power to both the CPU Unit and Expansion I/O Units

from the same power supply and turn them ON and OFF at the

same time.

• When connecting Expansion I/O Units with DC inputs to a CPU

Unit with an AC power supply, the burst noise immunity will be 1

kV (IEC 61000-4-4).

Precautions for Correct Use

• Input circuit commons are internally connected to the N terminal

of the power circuit for CPU Units with AC power supplies. Input

circuit commons are internally connected to the N terminal of the

power circuit for Expansion I/O Units with AC power supplies.

Wire the L terminal to the power supply of the input device.

L N NC I0 I1 I2 I3 I4 I5 NC I6 I7 I8 I9 Ia Ib

L N IN0 IN1 IN2 IN3

Circuit

protector

CPU Unit with 20 I/O points Expansion I/O Unit

ZEN-8E1AR

(AC input type)

100 to 240 VAC, 50/60 Hz

Input device

L N NC I0 I1 I2 I3 I4 I5

COM

IN0 IN1 IN2 IN3

COM

IN0 IN1 IN2 IN3

Circuit

protector

CPU Unit with 10 I/O points Expansion I/O Unit

ZEN-8E1DT

(DC inputs and

transistor outputs)

100 to 240 VAC, 50/60 Hz

Input

device

Input

device

Expansion I/O Unit

ZEN-8E1DR

(DC inputs and

relay outputs)

DC power supply

Z211-E1-02A.book Page 42 Monday, May 21, 2007 12:38 PM

Wiring Section 2-2

Connecting 2-Wire AC Sensors

A two-wire sensor cannot be connected directly to the AC input. To

connect a two-wire sensor, attach an external bleeder resistance in

the way shown below.

• Example: Connecting to a CPU Unit or Expansion I/O Unit

a) Use a resistance that satisfies both of the following

conditions.

b) Because of heat generation, use a resistor with at least the

following wattage.

Note Calculating the Bleeder Resistance

when Connecting an OMRON E2E-

X10Y 2-Wire AC Sensor

This calculations in this example

are based on an input voltage of

85 to 110 V AC.

The following values are from the

Sensor datasheet.

The Sensor's maximum leakage

current is 1.7 mA.

The minimum current when the

Sensor's OFF residual voltage is

I0 to I5

Two-wire

sensor

Internal

circuit

R1 (Ω) ≤Max. OFF-voltage for AC input (25 VAC)

Sensor’s max. leakage current (A)

R2 (Ω) ≤Voltage supplied to sensor (V)

Min. current for which the

sensor’s OFF residual voltage is

less than 25 V (A)

P (W) ≥

(Voltage supplied

to sensor)2

Resistance value × 3 (allowance factor)

Output residual voltage

Load current

(

)

Load residual

voltage

Load voltage VL (V)

At 100 V AC

E2E-X@Y@

100 VAC

OFF

Z211-E1-02A.book Page 43 Monday, May 21, 2007 12:38 PM

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Wiring Section 2-2

25 V or less (i.e., the OFF voltage for the ZEN) is 5 mA, as shown

in the residual voltage characteristic graph.

From the formulas given above,

R1 ≤ 25 V AC/1.7 mA= 14.7 kΩ

R2 ≤ 85 V AC/5 mA = 17 kΩ

The bleeder resistor must thus be 14 kΩ.

The Sensor output current in this case would be 100 VAC/14 kΩ,

or 7 mA. This satisfies the Sensor's control output range of 5 to

300 mA.

The bleeder resistor capacity is calculated as shown below and

must be 3 W.

P ≥ (110 V AC2)/14 kΩ × 3 = 2.59 W

2-2-5 Wiring CPU Units with DC Power Supplies

Power Supply and Input Circuits

■CPU Units with 10 I/O Points

Connecting a Negative Common (PNP Connection)

Connecting Analog Input Devices to Input Terminals I4 and I5

COM

CPU Unit with

10 I/O points

Input device

12 to 24 VDC

COM

I0 I1 I2 I3 I4 I5

CPU Unit with

10 I/O points

12 to 24 VDC

Note: When connecting an analog

input device, always connect

the negative side to the COM

terminal.

Z211-E1-02A.book Page 44 Monday, May 21, 2007 12:38 PM

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Wiring Section 2-2

Connecting Positive Common (NPN Connection)

Precautions for Correct Use

• Apply the power supply voltage through a relay or switch in such

a way that the voltage reaches the rated value within 4 s. If the

voltage is applied gradually, the power may not be reset or

unstable output operations may result.

• Connect the COM terminals before turning ON the power supply.

Not connecting the COM terminals or connecting them after

turning ON the power supply may cause malfunctions.

■CPU Units with 20 I/O Points

Connecting a Negative Common (PNP Connection)

Connecting Analog Input Devices to Input Terminals Ia

and Ib

COM

CPU Unit with

10 I/O points

Input device

12 to 24 VDC

Note: If a positive common is used,

analog input devices cannot be

connected to I4 and I5.

COM

I5 I6NC I7 I8 I9 Ia IbI0 I1 I2 I3 I4

CPU Unit with

20 I/O points

Input device

12 to 24 VDC

COM

I5 I6NC I7 I8 I9 Ia IbI0 I1 I2 I3 I4

CPU Unit with

20 I/O points

12 to 24 VDC

Note: When connecting

an analog input

device, always

connect the

negative side to the

COM terminal.

Z211-E1-02A.book Page 45 Monday, May 21, 2007 12:38 PM

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Wiring Section 2-2

Connecting Positive Common (NPN Connection)

Precautions for Correct Use

• Apply the power supply voltage through a relay or switch in such

a way that the voltage reaches the rated value within 4 s. If the

voltage is applied gradually, the power may not be reset or

unstable output operations may result.

• Be sure to connect COM terminal before turning ON power. The

un-connecting COM terminal or the wiring change after turning

ON power may cause malfunction.

■Expansion I/O Units

Connecting a Negative Common

Connecting Positive Common

COM

I5 I6NC I7 I8 I9 Ia IbI0 I1 I2 I3 I4

Input device

12 to 24 VDC Note: If a positive common is used,

analog input devices cannot be

connected to Ia and Ib.

COM

I5I0 I1 I2 I3 I4

COM

IN0 IN1 IN2 IN3

COM

IN0 IN1 IN2 IN3

Expansion I/O Unit

ZEN-8E1DR

(with DC power input

and relay outputs)

Input

devices

12 to 24 VDC

CPU Unit with 10 I/O Points

Input devices

Expansion I/O Unit

ZEN-8E1DT

(with DC power input

and transistor outputs)

COM

I5I0 I1 I2 I3 I4

COM

IN0 IN1 IN2 IN3

COM

IN0 IN1 IN2 IN3

Expansion I/O Unit

ZEN-8E1DR

(with DC power input

and relay outputs)

Input

devices

12 to 24 VDC

CPU Unit with 10 I/O Points Expansion I/O Unit

ZEN-8E1DT

(with DC power input

and transistor outputs)

Input devices

Z211-E1-02A.book Page 46 Monday, May 21, 2007 12:38 PM

Wiring Section 2-2

Precautions for Safe Use

• Supply power to both the CPU Unit and Expansion I/O Units

from the same power supply and turn them ON and OFF at the

same time.

• Expansion I/O Units with AC inputs (ZEN-8E1AR) cannot be

connected to a CPU Unit with a DC power supply.

Precautions for Correct Use

• The input common for Expansion I/O Units with relay outputs

(ZEN-8E1DR) is internally connected to one side of the power

supply circuit (COM terminal).

• A power supply does not need to be connected to Expansion I/O

Units with transistor outputs (ZEN-8E1DT).

Z211-E1-02A.book Page 47 Monday, May 21, 2007 12:38 PM

2H; 1f " 7,; Leakage Current from Input Devices

Wiring Section 2-2

Connecting Input Devices to the CPU Unit

The following table shows how to connect various input devices.

Note Do not use the following wiring with voltage-output devices:

■Leakage Current from Input Devices

A leakage current can cause false inputs when using 2-wire DC

sensors (proximity switches or photoelectric switches) or limit

switches with LEDs. False inputs won’t occur if the leakage current is

Device Circuit diagram

Relay output

NPN open collector

NPN current output

PNP current output

Voltage output

COM ZEN

−

Output

0 V

COM

ZEN

−

Use the same power supply for the input and sensor.

Constant

current

circuit

Output

0 V

COM

ZEN

−

COM

ZEN

−

Output

0 V

COM

ZEN

−

Output

0 V

Sensor

power supply

COM (+)

ZEN

−

Output

0 V

Z211-E1-02A.book Page 48 Monday, May 21, 2007 12:38 PM

x c

Wiring Section 2-2

less than 0.8 mA. If the leakage current exceeds this value, insert a

bleeder resistor in the circuit to reduce the input impedance, as

shown in the following diagram.

Note The OFF voltage of the analog/digital input terminals on the CPU

Unit is 30 V DC. A 2-wire DC sensor can not be connected.

Refer to page 123 Input Specifications for details on the values LC, IC, and EC.

The input impedance, input current, and OFF voltage may vary depending on

the input being used.

RZEN

Input power

supply

Bleeder

resistor

2-wire sensor, etc.

I: Device's leakage current (mA)

R: Bleeder resistance (kΩ)

W: Bleeder resistor's power rating (W)

The equations above were derived from the following equations:

LC: ZEN's input impedance (kΩ)

IC: ZEN's input current (mA)

EC: ZEN's OFF voltage (V) = 5.0 V

R = Lc × 5.0

I × Lc − 5.0 kΩ max. W = 2.3

RW min.

R × Input voltage (24)

Input Current (Ic)

R + Input voltage (24)

Input Current (Ic)

I × ≤ OFF voltage (Ec: 5.0)

W ≥ Input voltage (24)

R× Input voltage (24) × tolerance (4)

Z211-E1-02A.book Page 49 Monday, May 21, 2007 12:38 PM

Inductive Loads o n

Wiring Section 2-2

■Inductive Loads

When connecting an inductive load to an input, connect a diode in

parallel with the load. The diode should satisfy the following

requirements:

1,2,3... 1. Peak reverse-breakdown voltage must be at least 3 times the load

voltage.

2. Average rectified current must be 1 A.

COM

ZEN

Diode

Z211-E1-02A.book Page 50 Monday, May 21, 2007 12:38 PM

Wiring Section 2-2

2-2-6 Wiring Output Circuits

(1) Relay Output Type

For CPU Units with 10 I/O points and Expansion I/O Units, all 4

outputs in the relay output circuits have independent contacts. For

CPU Units with 20 I/O points, outputs Q0 to Q3 in the relay output

circuits have independent contacts and outputs Q4 to Q7 have 2

points per common.

There are no restrictions on polarity.

Q0 Q1 Q2 Q3

Load

CPU Unit with 10 I/O points

B(+) A(−)

Q0 Q1 Q2

RS-485

Load

Communications-type CPU Unit

Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7

CPU Unit with 20 I/O points

Load

OUT

0OUT

OUT

2OUT

Load

Expansion I/O Unit

Z211-E1-02A.book Page 51 Monday, May 21, 2007 12:38 PM

Wiring Section 2-2

(2) Transistor Output Type

For CPU Units with 10 I/O points and Expansion I/O Units, all 4

outputs in the transistor output circuits have independent circuits. The

terminals of output have polarity given on the terminal block, but no

problem will result from reversing the connection positions of the

power supply and load.

For CPU Units with 20 I/O points, outputs Q0 to Q3 in the transistor

output circuits have independent circuits and outputs Q4 to Q7 have

2 points per common. The terminals of output Q0 to Q3 have polarity

given on the terminal block, but no problem will result from reversing

the connection positions of the power supply and load.

Precautions for Correct Use

• Do not exceed a cable length of 10 m when connecting transistor

outputs.

+−Q1 Q2 Q3

+−+−+−

Q0 to Q3

CPU Unit with 10 I/O points

Load

Q0 Q1 Q2 Q3 −

−Q4 Q5 Q6 Q7

−

+−

++−+−+−

−+

Q0 to Q3

CPU Unit with 20 I/O points

Load

OUT2 OUT3

OUT0 OUT1

−

+−

−

OUT0 to OUT3

Expansion I/O Unit

Load

Z211-E1-02A.book Page 52 Monday, May 21, 2007 12:38 PM

(1) Oulpul Short Circuil Protection (2) Inductive Loads

Wiring Section 2-2

Output Wiring Precautions

(1) Output Short Circuit Protection

We recommend adding a protective fuse to all output circuits to

protect the output elements and PCBs from burning if the load

connected to the output terminal short-circuits.

(2) Inductive Loads

When connecting an inductive load to an input, connect a surge

protector or diode in parallel with the load.

The surge protector’s components should have the following ratings:

The diode should satisfy the following requirements:

Peak reverse-breakdown voltage must be at least 3 times the load

voltage.

Average rectified current must be 1 A.

OUT

COM

ZEN Surge protector

Relay Output

(+)

(−)

ZEN Diode

Relay Output

(Transistor Output)

(+)

(−)

ZEN

Relay Output

(Transistor Output)

Diode

Z211-E1-02A.book Page 53 Monday, May 21, 2007 12:38 PM

[3) lnrush Currenl Considerations _(\_____r;V. [4) Fuse Inserl n _o_q_

Wiring Section 2-2

(3) Inrush Current Considerations

When switching a load with a high inrush current in the ZEN relay

output or transistor output model, such as an incandescent lamp,

suppress the inrush current as shown below.

(4) Fuse Insertion

The ZEN with transistor output may burn if the load is short-circuited,

therefore, insert a protective fuse in series to the load.

Countermeasure 1

Providing a dark current of

approx. one-third of the rated

value through an incandescent

lamp

Countermeasure 2

Providing a limiting resistor

Z211-E1-02A.book Page 54 Monday, May 21, 2007 12:38 PM

SECTION 3

Programming and Operating Methods

This section explains how to create and edit ladder programs and how to use the timers, counters,

comparators, display function and buttons switches.

3-1 Selecting Display Language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

3-2 Setting the Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

3-3 Creating Ladder Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

3-3-1 I/O Wiring and Internal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

3-3-2 Clearing Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

3-3-3 Writing Ladder Programs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

3-4 Confirming Ladder Program Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

3-5 Correcting Ladder Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

3-5-1 Changing Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

3-5-2 Changing Additional Bit Output Functions . . . . . . . . . . . . . . . . . . . . . 71

3-5-3 Deleting Inputs, Outputs, and Connection Lines . . . . . . . . . . . . . . . . . 72

3-5-4 Inserting Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

3-5-5 Deleting Blank Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

3-6 Using Timers (T) and Holding Timers (#). . . . . . . . . . . . . . . . . . . . . . . . . . . 74

3-6-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 76

3-6-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 76

3-6-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

3-7 Using Counters (C) and the 8-Digit Counter (F) . . . . . . . . . . . . . . . . . . . . . . 78

3-7-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 78

3-7-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 79

3-7-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

3-8 Using Weekly Timers (@) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

3-8-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 82

3-8-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 83

3-8-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

3-9 Using Calendar Timers (*). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

3-9-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 86

3-9-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 86

3-9-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

3-10 Analog Inputs (Analog Comparators (A)) . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

3-10-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 89

3-10-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 89

3-10-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

3-11 Comparing Timer/Counter Present Values Using Comparators (P) . . . . . . . 91

3-11-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 91

3-11-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 92

3-11-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

3-12 Comparing the 8-Digit Counter (F) Present Value Using 8-Digit

Comparators (G) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

3-12-1 Settings in the Ladder Program Edit Screen. . . . . . . . . . . . . . . . . . . . . 94

3-12-2 Settings in the Parameter Settings Screen . . . . . . . . . . . . . . . . . . . . . . 94

3-12-3 Parameter Monitor Screen Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Z211-E1-02A.book Page 55 Monday, May 21, 2007 12:38 PM

3-13 Displaying Messages (Display Bits (D)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

3-13-1 Settings in the Ladder Program Edit Screen . . . . . . . . . . . . . . . . . . . . .96

3-13-2 Settings in the Parameter Settings Screen. . . . . . . . . . . . . . . . . . . . . . .97

3-14 Using Button Input Bits (B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Z211-E1-02A.book Page 56 Monday, May 21, 2007 12:38 PM

Opera 'on to Select German Mum 15 STOP noooooo a: mum: 9 9 9 9 SEEHNETER SET ELDCK LﬁNEUﬁBE LﬂNb‘Uﬂb‘k ENGLIS- LﬁNGUﬁGE ENGLISH

Selecting Display Language Section 3-1

3-1 Selecting Display Language

There is a choice of 6 display languages. The default language is English.

Operation to Select German

Press the OK Button to change to the Menu

Screen.

Press the Down Button 4 times to move the

cursor to “LANGUAGE”.

Press the OK Button to display the current

language (“ENGLISH”). The final “H” will be

highlighted and flashing.

Press the OK Button to make the whole word

“ENGLISH” flash. A different language can

now be selected.

Press the Up Button to select GERMAN.

Press the OK Button to display a

confirmation message.

Press the OK Button to complete the setting.

The display language will change to German.

Tur n O N

the power.

▼

▲ ▼

Use the Up/Down Buttons to

select a language.

SPANISH

ITALIAN

FRENCH

GERMAN

JAPANESE

ENGLISH

↓

↑

LANGUAGE

GERMAN

LANGUAGE

SET?

OK/ESC

GERMAN

RUN

PARAMETER

KALENDER

SPRACHE

▲ ▼

Z211-E1-02A.book Page 57 Monday, May 21, 2007 12:38 PM

ﬁ

Setting the Date and Time Section 3-2

3-2 Setting the Date and Time

The date and time are not set when the product is shipped. The date and

time must be set before the ZEN can be used. LED-type CPU Units (ZEN-

@0C2@@-@-V2) do not have a calendar and clock function.

Press the OK Button to display the submenu

for clock settings. Select SET CLOCK from

the submenu.

Press the OK Button to display the current

date and time settings. The right digit of the

date will be highlighted and flashing.

Current time: hh:mm (day)

Current date: yy/mm/dd

Press the OK Button to

change from a highlighted

cursor to a flashing cursor

and enable data to be

changed.

Set the date and time.

Use the Up/Down Buttons to change the

setting.

Use the Left/Right Buttons to move the

cursor.

The day will automatically change when the

date is set.

Press the OK Button to display a

confirmation message.

Press the OK Button to confirm and

complete the setting.

Precautions for Correct Use

If the power supply is turned OFF for two days or more at 25°C, the

date and time will return to the default setting (00/1/1; 00:00 (SA)).

PROGRAM

RUN

PARAMETER

SET CLOCK

▼

Select SET

CLOCK.

SET CLOCK

SUMMER TIME

SET CLOCK

yy/mm/dd

00/01/0

00:03(SA)

SET CLOCK

yy/mm/dd

00/01/01

00:03(SA)

Days of the week

SU: Sunday

MO: Monday

TU: Tuesday

WE: Wednesday

TH: Thursday

FR: Friday

SA: Saturday

SET CLOCK

yy/mm/dd

00/04/01

11:35(SU)

SET CLOCK

SET?

OK/ESC

11:35(SU)

Z211-E1-02A.book Page 58 Monday, May 21, 2007 12:38 PM

Setting the Date and Time Section 3-2

This may cause programs using calendar timers or weekly timers to

malfunction. Therefore, mount a Battery Unit for the system if the

power supply is expected to be interrupted for an extended time.

(Refer to page 110.)

Note 1. The year can be set between 2000 and

2099.

2. If the Daylight Saving Time (DST) is set,

“S” will appear at the top right of the time

setting screen during the Daylight Saving

Time (DST) period. (Refer to page 107.)

SET CLOCK S

yy/mm/dd

01/05/01

00:00(TU)

“S” displayed during

the Daylight Saving

Time (DST) period

Z211-E1-02A.book Page 59 Monday, May 21, 2007 12:38 PM

aS—M—ﬂ MMLHH

Creating Ladder Programs Section 3-3

3-3 Creating Ladder Programs

Example Program

This section explains how to write ladder

programs, based on a simple circuit

example.

Refer to the ZEN-SOFT01-V4 ZEN Support

Software Operation Manual (Z184) for

information on programming LED-type CPU

Units.

3-3-1 I/O Wiring and Internal Operation

3-3-2 Clearing Programs

Clear the ladder program before starting to

write a program. By performing the Delete

Program operation, the ladder program will

be completely cleared. The display

language, date/time settings, and all other

settings will not be initialized.

SW1 SW2

Power supply

terminals

SW1 SW2

LNI0 I2 I3I1

I0 I1

(1) (2)

(3)

Q0 Q1

Input terminals

Ladder

program

Output terminals

Load

Connect switches SW1 and SW2

between N and input terminals I0

and I1.

When SW1, connected to input bit

I0, turns ON or OFF, I0 (indicated

by (1) in the diagram) turns ON or

OFF.

When SW2, connected to input bit

I1, turns ON or OFF, I1 (indicated

by (2) in the diagram) turns ON or

OFF.

If the ladder program is executed

in RUN mode and SW1 turns ON,

input bit I0 turns ON, output bit Q0

turns ON, and the output contact

(indicated by (3) in the diagram)

turns ON.

When the output contact (3) turns

ON, the load connected to output

terminal Q0 turns ON.

Z211-E1-02A.book Page 60 Monday, May 21, 2007 12:38 PM

Mum 15 STOP “000000 a: mum: Man: 15 star? I = 000000 a: [man an I47

Creating Ladder Programs Section 3-3

Press the OK Button to switch to the Menu

Screen and select PROGRAM.

Select DELETE PROG.

If a password has been set, a Password

Input Screen will be displayed. Input the

password.

Press the OK Button to display a

confirmation message, and then select YES.

When the Delete Program operation has

been completed, the display will return to the

original screen.

3-3-3 Writing Ladder Programs

Press the OK Button to switch to the Menu

Screen and select PROGRAM.

Select EDIT PROG.

Press the OK Button to display a

confirmation message, and then select YES.

STOP mode

display

PROGRAM

RUN

PARAMETER

SET CLOCK

▼

EDIT PROG

DELETE PROG

DELETE?

YES

EDIT PROG

DELETE PROG

STOP mode

display

PROGRAM

RUN

PARAMETER

SET CLOCK

▼

EDIT PROG

DELETE PROG

EDIT

EDIT?

YES

▲ ▼

Press the OK Button to switch to the Ladder

Program Edit Screen.

Indicates the line number in the ladder

program at the cursor position (line 0 in this

example.)

Cursor flashing in a reversed state.

▼

Z211-E1-02A.book Page 61 Monday, May 21, 2007 12:38 PM

Operations in the Ladder Program Edit Saree DDDDDDDDD EU I] DI] DI] DUDE DDDDDDDDD }DDD I] DI] DI] UDDD

Creating Ladder Programs Section 3-3

Operations in the Ladder Program Edit Screen

Two lines of circuits can be displayed at one

time on the Ladder Program Edit Screen.

Up to 96 lines can be written.

Up to 3 inputs and 1 output can be written

per line.

▲ ▼

• Example ladder diagram

Connection

line

Bit address

Bit type

Ladder program line number at cursor

Additional output functions

Bit address

Bit type

N.C. input

N.O. input

Displayed when there are more lines. Use the Down Button to

display the lines.

Displayed when there are more lines. Use the Up Button to

display the lines.

Input write positions

Bit type/bit number

Input symbol (N.O./N.C) or connection line

Bit/timer/counter/

output write positions

Connection line write positions

• Positions for Writing Inputs, Outputs, and Connection Lines

Z211-E1-02A.book Page 62 Monday, May 21, 2007 12:38 PM

WrI ng Inputs [a BB u 19 an I! I [a [a an n u [a [a an n u [a u an n 11 BB H

Creating Ladder Programs Section 3-3

3-3-3-1 Writing an Input for I0

Press the OK Button to display the initial

write setting (N.O input I0) and move the

flashing cursor to the bit type I position. Use

the Up/Down Buttons to select the bit type.

Use the Right Button to move the flashing

cursor to the 0 position and then use the Up/

Down Buttons to select the bit address.

Press the OK Button twice to complete the

write operation for input I0. The highlighted

cursor will move the next input position.

3-3-3-2 Writing Serial Input I1

Press the OK Button to display the N.O. input

and input I0 again.

Press the ALT Button to switch to a N.C.

input.

(Press the ALT Button again to switch back

to a N.O. input.)

Use the Right Button to move the flashing

cursor to the bit address position and use the

Up Button to change the bit address to 1.

Press the OK Button to move the highlighted

cursor to the next input position. A

connection will automatically be created

between input I0 and the next input.

Writing Inputs

Input Symbol Configuration

▼

Bit type

Bit number

Input symbols ( N.O. input;

N.C. input.)

Z211-E1-02A.book Page 63 Monday, May 21, 2007 12:38 PM

Creating Ladder Programs Section 3-3

■Memory Areas

Note 1. I0 to Ib (12 points) for CPU Units with 20

I/O points.

2. Q0 to Q7 (8 points) for CPU Units with 20

I/O points. Q3 of CPU Units with

communications cannot be output

externally.

3. Can be used only when Expansion I/O

Units are connected.

4. Cannot be used for LED-type CPU Units.

■Timers, Counters, and Analog Comparators

Note 1. Can be used only when LCD-type CPU

Units are used.

2. Can be used only with CPU Units with

DC power supply (PNP connection).

Symbol Name Bit type and number

I CPU Unit input bits I0 to I5 (6 points) (See note 1.)

Q CPU Unit output bits Q0 to Q3 (4 points) (See note 2.)

X Expansion I/O Unit input

bits

X0 to Xb (12 points) (See note 3.)

Y Expansion I/O Unit output

bits

Y0 to Yb (12 points) (See note 3.)

M Work bits M0 to Mf (16 points)

H Holding bits H0 to Hf (16 points)

B Button switches B0 to B7 (8 points) (See note 4.)

Symbol Name Bit type and number

T Timers T0 to Tf (16 timers)

# Holding timers #0 to #7 (8 timers)

@ Weekly timers @0 to @f (16 timers) (See note

1.)

*Calendar timers *0 to *f (16 timers) (See note

1.)

C Counters C0 to Cf (16 counters)

F 8-Digit counter F0 (1 counter)

A Analog comparators A0 to A3 (4 comparators)

(See note 2.)

P Comparators P0 to Pf (16 comparators)

G 8-Digit comparators G0 to G3 (4 comparators)

Z211-E1-02A.book Page 64 Monday, May 21, 2007 12:38 PM

Writing Outputs

Creating Ladder Programs Section 3-3

Press the ALT Button to enable drawing a

connection line. The left arrow cursor will

flash.

Press the Right Button to draw a connection

line to the output.

Writing Outputs

Output Configuration

■Memory Areas

Note 1. Q0 to Q7 (8 points) for CPU Units with 20

I/O points. Q3 of CPU Units with

communications cannot be output

externally.

2. Can be used only when Expansion I/O

Units are connected.

■Additional Functions for Output Bits

▼

Bit number

Bit type

Additional functions

Symbol Name Bit type and number

Q CPU Unit output bits Q0 to Q3 (4 outputs) (See note 1.)

Y Expansion I/O Unit output

bits

Y0 to Yb (12 outputs) (See note 2.)

M Work bits M0 to Mf (16 bits)

H Holding bits H0 to Hf (16 bits)

Symbol Name

[ Normal operation

S Set operation

R Reset operation

A Alternate operation

Z211-E1-02A.book Page 65 Monday, May 21, 2007 12:38 PM

c Ia 1 1 ea n——u-——-- I IE I 1 BE u—-u-——--ma

Creating Ladder Programs Section 3-3

Additional Functions for Bit Outputs

Timers, Holding Timers, Counters, and Display Output Configurations

■Timers, Counters, and Display Bits

Note Cannot be used for LED-type CPU Units.

3-3-3-3 Writing an Output to Q0

Press the Right Button again to draw a line

to the output and move the highlighted cursor

to the output write position.

Press the OK Button to display the initial

value for the output (normal output/Q0) and

move the flashing cursor to the bit type Q

position.

Use the Up/Down Buttons to select the bit

type. Use the Right/Left Buttons to move the

flashing cursor and use the Up/Down

Buttons to select additional functions or

select the bit address.

[: Normal output S: Set R: Reset A: Alternate

Q0 turns ON and OFF

when execution

condition I0 turns ON

and OFF.

Q1 turns ON and stays

ON when execution

condition I1 turns ON

once.

Q2 is forced OFF

when execution

condition I2 turns ON.

Q3 alternates between

On and OFF each time

execution condition I3

turns ON.

Timer/counter/display number

Timer/counter/display type

Timer/counter output type

Symbol Name Type and number Output type

T Timer T0 to Tf (16 timers) T: Trigger

R: Reset

# Holding timer #0 to #7 (8 timers)

C Counter C0 to Cf (16 counters) C: Count

D: Count direction

R: Reset

F 8-Digit

counter

f0 (1 counter)

D Display bit D0 to Df (16 bits)

(See note.)

▼

Z211-E1-02A.book Page 66 Monday, May 21, 2007 12:38 PM

Drawmg Connection es Ia n a) "nun—"ma an n (-

Creating Ladder Programs Section 3-3

Press the OK Button twice to complete

writing output Q0. The highlighted cursor will

move to the input at the beginning of the next

line.

3-3-3-4 Writing a Parallel Input for Q0

Press the OK Button to display input I0 and

move the flashing cursor to the bit type I

position.

Press the Up Button to select Q (a CPU Unit

output bit).

Press the OK Button twice to complete

writing the parallel input for Q0. The

highlighted cursor will move to the next input.

3-3-3-5 Drawing Connection Lines for OR Circuits

Drawing Connection Lines

Press the ALT Button when the highlighted

cursor is at the input write position to change

the cursor to a left flashing arrow and enable

connection lines to be drawn. Move the left

arrow the position for drawing the connection

line and press the Up, Down, Left, and

Right Buttons to draw connection lines

vertically and horizontally.

It will not be possible to draw connection

lines, if a written input/output bit has been

reached, if the beginning or end of the line

has been reached, or if the OK and ESC

Buttons are pressed.

Press the ALT Button to enable drawing

connection lines.

▼

Horizontal connection lines

Vertical connection lines

Intersecting lines

▼

Z211-E1-02A.book Page 67 Monday, May 21, 2007 12:38 PM

II I l IZI up». I n dig—Ga ma m M: H] II-om-I—o

Creating Ladder Programs Section 3-3

Press the Up Button to simultaneously draw a

connection line both vertically and horizontally.

The cross (+) indicates an intersection.

Press the OK Button to complete writing the

connection line and change to a highlighted

flashing cursor.

Press the ESC Button to complete the write

operation.

Press the ESC Button again to return to the

Menu Screen.

Precautions for Correct Use

Always press the ESC Button and return to the Menu Screen after

creating a program. If you do not press the ESC Button and return to

the Menu Screen before turning OFF the power, the program and

settings will be deleted.

• Do not input a program where the connection lines double back

on themselves. The program will not operate properly if such

lines are drawn.

• Do not use the same output bit address for more than one output

from the program. The resulting operation may not be as

expected.

▼

[Q0

Here, the final status of Q0 will be controlled

by I1, not by I0.

Z211-E1-02A.book Page 68 Monday, May 21, 2007 12:38 PM

Procedure for Checking Operation Method lor Checking Oper n

Confirming Ladder Program Operation Section 3-4

3-4 Confirming Ladder Program Operation

Always check the ladder program operation before using the ZEN.

Precautions for Safe Use

• Before turning ON the power, check that all wiring has been

performed correctly.

• For systems with loads connected to the outputs that may cause

serious injury or damage to equipment if operation is incorrect,

remove the output wiring before performing trial operation.

• Always ensure safety in the vicinity before switching the

operating mode (RUN/STOP).

Procedure for Checking Operation

Checks Before Turning ON the Power

1. Check that the ZEN is mounted and wired correctly.

2. Check that the operation of the ZEN will not have a negative

impact on the system. Check for any dangers.

3. Turn ON the power supply to the ZEN.

The ZEN will start in RUN Mode when power is turned ON.

Operation Checks

4. Turn each input ON and OFF and check that the program is

operating correctly.

5. Adjust any problems.

Method for Checking Operation

• Check the operation by the flashing input and output displays on

the Main Screen (not including LED-type CPU Units).

• Check the operation by using the Ladder Program Monitor (not

including LED-type CPU Units).

• Connect the ZEN Support Software and check operation using

the monitor function. Refer to the operation manual for the ZEN

Support Software.

Z211-E1-02A.book Page 69 Monday, May 21, 2007 12:38 PM

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Confirming Ladder Program Operation Section 3-4

Checking Operation

Changing Operating Mode

Press the OK Button to display the Menu

Screen and press the Down Button to move

the flashing cursor to RUN.

Press the OK Button to switch from STOP

mode to RUN mode.

PROGRAM

RUN

PARAMETER

SET CLOCK

▼

MONITOR

STOP

PARAMETER

SET CLOCK

▼

RUN

I0 I1

Checking Operations on

Main Screen

Press the ESC

Button to switch

to the Main

Screen.

Checking Operations Using

Ladder Program Monitor

MONITOR

STOP

PARAMETER

SET CLOCK

▼

RUN

Select Monitor

in RUN mode.

Press the OK

Button to switch

to the Ladder

Program

Monitoring

Screen.

Turn I0 ON. Q0 will turn ON when

I0 turns ON.

I0 ON.

Q0 ON at the same

time.

Q0 turns ON at

the same time

when I0 turns

ON. When the

bit is ON, the

vertical and

horizontal lines

are thick.

Turn I0 OFF. Q0 remains ON

even if I0 turns OFF.

I0 OFF.

Q0 ON.

Turn I1 ON. Q0 will turn OFF when

I1 is turned ON.

I1 ON.

Q0 OFF.

RUN

▼

Z211-E1-02A.book Page 70 Monday, May 21, 2007 12:38 PM

390 u» m n ma "-4" ----- 508 m I l!-+

Correcting Ladder Programs Section 3-5

3-5 Correcting Ladder Programs

3-5-1 Changing Inputs

Change contact Q0 to M1.

Press the OK Button to change the

highlighted cursor to a flashing cursor and

move the flashing cursor to the bit type

position.

Use the Up/Down Buttons to select M.

Press the Right Button to move the flashing

cursor to the bit address position. Use the

Up/Down Buttons to change the bit address

from 0 to 1.

Press the OK Button to complete the setting

change.

3-5-2 Changing Additional Bit Output Functions

Change the additional function for the input

for Q0 to S (Set).

Press the OK Button to change the

highlighted cursor to a flashing cursor.

Press the Left Button to move the flashing

cursor to the additional function position.

Press the Up Button twice to change the

additional function from [ to S.

Press the OK Button to complete the

change.

Move the

highlighted cursor

to the input to be

changed. ▼

▼

Move the

highlighted cursor

to the output to be

changed. ▼

▼

Z211-E1-02A.book Page 71 Monday, May 21, 2007 12:38 PM

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Correcting Ladder Programs Section 3-5

3-5-3 Deleting Inputs, Outputs, and Connection Lines

Move the highlighted cursor to the position of

the input, output, or connection line to be

deleted and press the DEL Button.

Example: Deleting Serial Input M3

Press the DEL Button to delete the input and

the related connecting lines at the same

time.

Example: Deleting Vertical Connecting Lines

Move the highlighted cursor to the input

position to the right of the vertical line to be

deleted. Press the ALT Button to enable

drawing connection lines. The highlighted

cursor will change to a left arrow cursor.

Press the DEL Button to delete the vertical

connection line.

3-5-4 Inserting Lines

• To insert a blank line, move the highlighted cursor to the beginning of the line where

the blank line is to be inserted and press the ALT Button.

Press the ALT Button to insert one blank line.

• To add OR programming, inputs can be added between parallel inputs. Move the

highlighted cursor to the beginning of the line where the input is to be inserted.

Move the high-

lighted cursor to the

position of the input

to be deleted. ▼

▼

Move the highlighted

cursor to the beginning

of the next line (the line

that will be after the

inserted line.)

A circuit will be added here.

▼

Blank line

▼

Move the highlighted

cursor to the beginning

of the next line (the line

that will be after the

inserted line.)

An input will be added here.

Z211-E1-02A.book Page 72 Monday, May 21, 2007 12:38 PM

a) Hulk—"ma Ia n I I I u-+ Ia n a) l!-rM--—--[HB Ia 11 ¢

Correcting Ladder Programs Section 3-5

Press the ALT Button to reserve a 1-line

space between the parallel inputs.

The vertical connection lines will be

automatically extended.

Note A blank line cannot be inserted if an input or connection line is

written in the last line (the 96th line).

3-5-5 Deleting Blank Lines

To delete a blank line, move the highlighted

cursor to the input position at the beginning

of the line to be deleted and press the DEL

Button.

Press the DEL Button to delete one blank

line. All following lines will move up one.

Note A line must be blank to be deleted, i.e., lines containing inputs

and outputs cannot be deleted.

Blank line

Move the high-

lighted cursor to the

beginning of the

line to be deleted. This line will be deleted.

▼

Z211-E1-02A.book Page 73 Monday, May 21, 2007 12:38 PM

Timer Usage and Operation

Using Timers (T) and Holding Timers (#) Section 3-6

3-6 Using Timers (T) and Holding Timers (#)

The ZEN has 16 built-in timers and 8 built-in holding timers.

Timer Usage and Operation

Timers The present value being timed will be reset when the timer switches from RUN

mode to STOP mode or the power is turned OFF.

There are five uses of the timer available, depending on the additional function

selection.

Holding timers The present value being timed is held even when the timer switches from RUN

mode to STOP mode or the power is turned OFF. The time will continue when

the trigger input turns ON again. The ON status of the timer bit is also held

when the timer times out.

Only ON-delay holding timers are supported.

X: ON delay timer

Turns ON after a set interval after the trigger

input has turned ON.

Basic Operation

Main Applications

Time lag operations

■: OFF delay timer

Stays ON while the trigger input is ON and turns

OFF after a set interval after the trigger input

has turned OFF.

Basic Operation

Main Applications

Useful for timing lighting and ventilating fans.

Reset input

Trigger input

Setting

Present

value

Timer bit

0Trigger input

Time

Output

Reset input

Trigger input

Setting

Present

value

Timer bit

Trigger input

Time

Output

Z211-E1-02A.book Page 74 Monday, May 21, 2007 12:38 PM

H' ‘ Holdin Timer Usa eand 0 eralion

Using Timers (T) and Holding Timers (#) Section 3-6

Holding Timer Usage and Operation

O: One-shot pulse timer

Remains ON for a set interval when the trigger

input turns ON.

Basic Operation

Main Applications

Useful for fixed-quantity operation when

operation is always required for the same

period.

F: Flashing pulse timer

Turns ON and OFF repeatedly at set intervals

while the trigger input is ON.

Basic Operation

Main Applications

Useful as an alarm circuit for flashing

emergency lighting or buzzers.

W: Twin timer

Turns ON and OFF repeatedly at set intervals

while the trigger input is ON. The ON time and

OFF time can be set independently.

Basic Operation

Main Applications

Convenient for intermittent operation, such as

that used for fans.

X: ON delay timer only

Turns ON after a set interval after the trigger

input has turned ON. The present value is held

while the trigger input is OFF.

Main applications

When operation is to be continued even during

momentary power interruptions and longer

power interruptions. Also used for time-lag

operation.

Reset input

Trigger input

Setting

Present

value

Timer bit

0Trigger input

Time

Output

Reset input

Trigger input

Setting

Present

value

Timer bit

0Trigger input

Time

Output

Time Time Tim

Reset input

Trigger input

Present

value

Timer bit

ON time

OFF time

Trigger input

time

Output

OFF

time

OFF

time

Reset input

Trigger input

Setting

Present

value

Timer bit

Z211-E1-02A.book Page 75 Monday, May 21, 2007 12:38 PM

All Timers Except Twin Timers (X, I, O F) 4,7 T6 X S R free RES BB. 914» a Twin Timers (W! 1 r 66

Using Timers (T) and Holding Timers (#) Section 3-6

3-6-1 Settings in the Ladder Program Edit Screen

Timer triggers, reset outputs, and timer inputs are drawn on the Ladder

Program Edit Screen. Settings are made on the Parameter Settings

Screen.

3-6-2 Settings in the Parameter Settings Screen

All Timers Except Twin Timers (X, ■, O, F)

Twin Timers (W)

Timer address Timers: T0 to Tf (16 timers)/ Holding Timers: #0 to #7 (8 timers)

Trigger input T (TRG) Controls the timer trigger output. Triggers the timer when the trigger

input turns ON.

Reset input R (RES) Controls the timer reset output. When the reset input turns ON, the

present value is reset to 0 and the timer bit turns OFF. Trigger inputs

are not accepted while the reset input is ON.

Timer bit Turns ON according to the timer type.

Timer number

Trigger specification

Timer trigger output

Timer reset output

Reset specification

Time up output

Trigger input

Reset input

Timer address

Timer bit

Timer type Time unit

Monitor enabled/disabled

Set value

Timer address

▲ ▼

TO W M:S A

ON-TIMER

TRG

RES 02.10

TO W H:M A

OFF-TIMER

TRG

RES 01.30

Timer type Time unit for ON time

Monitor enabled/disabled

Set value

Timer address

ON time

Time unit for OFF time

OFF time

to switch the display.

Z211-E1-02A.book Page 76 Monday, May 21, 2007 12:38 PM

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Using Timers (T) and Holding Timers (#) Section 3-6

Timer Types

Time Units and Settings

Monitor Enabled or Disabled

3-6-3 Parameter Monitor Screen Display

All Timers Except Twin Timers

Twin Timers

X ON delay

■OFF delay

O One-shot pulse

F Flashing pulse

W Twin

S 00.01 to 99.99 s (in 0.01-s units)

M:S 00 min 01 s to 99 min 59 s (in minutes and seconds)

H:M 00 h 01 m to 99 h 59 m (in hours and minutes)

A Operating parameters can be monitored and settings changed.

D Operating parameters cannot be monitored nor settings changed.

Trigger input status

( : OFF/●: ON)

Reset input status

(: OFF/●: ON)

Timer present value

Timer bit status

( : OFF/●: ON)

Timer setting

RUN

TO W M:S A

ON-TIMER

TRGo 00.00o

RESo 02.10

TO W H:M A