Omron CJ1H-CPU_H-R, CS1G/H-CPU_-EV1, CJ1G-CPU, CJ1G/H-CPU_H, CJ1G-CPU_P PROGRAMMING MANUAL

...

Cat. No. W394-E1-14

SYSMAC CS Series

CS1G/H-CPU_-EV1, CS1G/H-CPU_H, CS1D-CPU_H, CS1D-CPU_S

SYSMAC CJ Series

CJ1H-CPU_H-R, CJ1G-CPU_, CJ1G/H-CPU_H, CJ1G-CPU_P, CJ1M-CPU_

SYSMAC One NSJ Series

Programmable Controllers

PROGRAMMING MANUAL

SYSMAC CS Series

CS1G/H-CPU@@-EV1 CS1G/H-CPU@@H CS1D-CPU@@H CS1D-CPU@@S

SYSMAC CJ Series

CJ1H-CPU@@H-R CJ1G-CPU@@ CJ1G/H-CPU@@H CJ1G-CPU@@P CJ1M-CPU@@

SYSMAC One NSJ Series Programmable Controllers

Programming Manual

Revised December 2009

Notice:

r f

OMRON products are manufactured for use according to proper procedures by a qualified operator and only for the purposes described in this manual.

The following conventions are used to indicate and classify precautions in this manual. Always heed the information provided with them. Failure to heed precautions can result in injury to people or damage to property.

!DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or

serious injury. Additionally, there may be severe property damage.

!WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or

serious injury. Additionally, there may be severe property damage.

!Caution Indicates a potentially hazardous situation which, if not avoided, may result in minor or

moderate injury, or property damage.

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.

The abbreviation “Ch,” which appears in some displays and on some OMRON products, often means “word” and is abbreviated “Wd” in documentation in this sense.

The abbreviation “PLC” means Programmable Controller. “PC” is used, however, in some Programming Device displays to mean Programmable Controller.

Visual Aids

 OMRON, 2001

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, o by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission o 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.

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 opera-

tion of the product.

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

Unit Versions of CS/CJ-series CPU Units

Unit Versions A “unit version” has been introduced to manage CPU Units in the CS/CJ

Series according to differences in functionality accompanying Unit upgrades. This applies to the CS1-H, CJ1-H, CJ1M, and CS1D CPU Units.

Notation of Unit Versions on Products

CS/CJ-series CPU Unit

The unit version is given to the right of the lot number on the nameplate of the products for which unit versions are being managed, as shown below.

Product nameplate

CS1H-CPU67H

CPU UNIT

Lot No.

Lot No. 040715 0000 Ver.3.0

OMRON Corporation MADE IN JAPAN

Unit version Example for Unit version 3.0

• CS1-H, CJ1-H, and CJ1M CPU Units manufactured on or before November 4, 2003 do not have a unit version given on the CPU Unit (i.e., the location for the unit version shown above is blank).

• The unit version of the CJ1-H-R CPU Units begins at version 4.0.

• The unit version of the CS1-H, CJ1-H, and CJ1M CPU Units, as well as the CS1D CPU Units for Single-CPU Systems, begins at version 2.0.

• The unit version of the CS1D CPU Units for Duplex-CPU Systems, begins at version 1.1.

• CPU Units for which a unit version is not given are called Pre-Ver. @.@ CPU Units, such as Pre-Ver. 2.0 CPU Units and Pre-Ver. 1.1 CPU Units.

Confirming Unit Versions with Support Software

CX-Programmer version 4.0 can be used to confirm the unit version using one of the following two methods.

• Using the PLC Information

• Using the Unit Manufacturing Information (This method can be used for Special I/O Units and CPU Bus Units as well.)

Note CX-Programmer version 3.3 or lower cannot be used to confirm unit versions.

PLC Information

• If you know the device type and CPU type, select them in the Change PLC Dialog Box, go online, and select PLC - Edit - Information from the

menus.

• If you don't know the device type and CPU type, but are connected directly to the CPU Unit on a serial line, select PLC - Auto Online to go online, and then select PLC - Edit - Information from the menus.

In either case, the following PLC Information Dialog Box will be displayed.

Unit version

Use the above display to confirm the unit version of the CPU Unit.

Unit Manufacturing Information

In the IO Table Window, right-click and select Unit Manufacturing information - CPU Unit.

The following Unit Manufacturing information Dialog Box will be displayed.

vii

Unit version

Use the above display to confirm the unit version of the CPU Unit connected online.

Using the Unit Version Labels

The following unit version labels are provided with the CPU Unit.

These labels can be attached to the front of previous CPU Units to differentiate between CPU Units of different unit versions.

viii

Unit Version Notation In this manual, the unit version of a CPU Unit is given as shown in the follow-

ing table.

Product nameplate

Meaning

Designating individual CPU Units (e.g., the CS1H-CPU67H)

Designating groups of CPU Units (e.g., the CS1-H CPU Units)

Designating an entire series of CPU Units (e.g., the CS-series CPU Units)

CPU Units on which no unit version is

given

Lot No. XXXXXX XXXX

OMRON Corporation MADE IN JAPAN

Pre-Ver. 2.0 CS1-H CPU Units CS1H-CPU67H CPU Unit Ver. @.@

Pre-Ver. 2.0 CS1-H CPU Units CS1-H CPU Units Ver. @.@

Pre-Ver. 2.0 CS-series CPU Units CS-series CPU Units Ver. @.@

Units on which a version is given

(Ver. @.@)

Lot No. XXXXXX XXXX

Ver. @ @ .@

Unit Versions

CS Series

Units Models Unit version

CS1-H CPU Units CS1@-CPU@@H Unit version 4.1

Unit version 4.0 Unit version 3.0 Unit version 2.0 Pre-Ver. 2.0

CS1D CPU Units Duplex-CPU Systems

CS1D-CPU@@H

Single-CPU Systems CS1D-CPU@@S

CS1 CPU Units CS1@-CPU@@ No unit version.

CS1 Version-1 CPU Units

CS1@-CPU@@-V1 No unit version.

CJ Series

Units Models Unit version

CJ1-H CPU Units CJ1H-CPU@@H-R Unit version 4.2

CJ1@-CPU@@H CJ1@-CPU@@P

CJ1M CPU Units

CJ1M-CPU12/13

CJ1M-CPU22/23

CJ1M-CPU11/21 Unit version 4.0

Unit version 1.2 Unit version 1.1 Pre-Ver. 1.1 Unit version 2.0

Unit version 4.1 Unit version 4.0 Unit version 4.0 Unit version 3.0 Unit version 2.0 Pre-Ver. 2.0 Unit version 4.0 Unit version 3.0 Unit version 2.0 Pre-Ver. 2.0

Unit version 3.0 Unit version 2.0

NSJ Series

Units Unit version

NSJ@-TQ@@(B)-G5D NSJ@-TQ@@(B)-M3D

Unit version 3.0

Function Support by Unit Version

• Functions Supported for Unit Version 4.0 or Later

CX-Programmer 7.0 or higher must be used to enable using the functions added for unit version 4.0. Additional functions are supported if CX-Programmer version 7.2 or higher is used.

CS1-H CPU Units

Function CS1@-CPU@@H

Unit version 4.0 or later Other unit versions

Online editing of function blocks

Note This function cannot be used for simulations on the CX-Simulator. Input-output variables in function blocks OK --Text strings in function blocks OK --New application

instructions

ST programming in task programs OK with CX-Program-

SFC programming in task programs OK with CX-Program-

Number-Text String Conversion Instructions: NUM4, NUM8, NUM16, STR4, STR8, and STR16

TEXT FILE WRITE (TWRIT) OK ---

OK ---

mer version 7.2 or higher

---

CS1D CPU Units Unit version 4.0 is not supported.

CJ1-H/CJ1M CPU Units

Function CJ1H-CPU@@H-R, CJ1@-CPU@@H,

CJ1G-CPU@@P, C J1 M - C P U @@

Unit version 4.0 or later Other unit versions

Online editing of function blocks

Note This function cannot be used for simulations on the CX-Simulator. Input-output variables in function blocks OK --Text strings in function blocks OK --New application

instructions

ST programming in task programs OK with CX-Program-

SFC programming in task programs OK with CX-Program-

Number-Text String Conversion Instructions: NUM4, NUM8, NUM16, STR4, STR8, and STR16

TEXT FILE WRITE (TWRIT) OK ---

OK ---

mer version 7.2 or higher

User programs that contain functions supported only by CPU Units with unit version 4.0 or later cannot be used on CS/CJ-series CPU Units with unit version 3.0 or earlier. An error message will be displayed if an attempt is made to download programs containing unit version 4.0 functions to a CPU Unit with a unit version of 3.0 or earlier, and the download will not be possible.

If an object program file (.OBJ) using these functions is transferred to a CPU Unit with a unit version of 3.0 or earlier, a program error will occur when operation is started or when the unit version 4.0 function is executed, and CPU Unit operation will stop.

---

• Functions Supported for Unit Version 3.0 or Later

CX-Programmer 5.0 or higher must be used to enable using the functions added for unit version 3.0.

CS1-H CPU Units

Function CS1@-CPU@@H

Unit version 3.0 or

later

Function blocks OK --Serial Gateway (converting FINS commands to CompoWay/F

commands at the built-in serial port) Comment memory (in internal flash memory) OK --Expanded simple backup data OK --New application

instructions

Additional instruction functions

TXDU(256), RXDU(255) (support no-protocol communications with Serial Communications Units with unit version 1.2 or later)

Model conversion instructions: XFERC(565), DISTC(566), COLLC(567), MOVBC(568), BCNTC(621)

Special function block instructions: GETID(286) OK --TXD(235) and RXD(236) instructions (support no-

protocol communications with Serial Communications Boards with unit version 1.2 or later)

OK ---

CS1D CPU Units Unit version 3.0 is not supported.

Other unit versions

CJ1-H/CJ1M CPU Units

Function CJ1H-CPU@@H-R, CJ1@-CPU@@H,

Function blocks OK --Serial Gateway (converting FINS commands to CompoWay/F

commands at the built-in serial port) Comment memory (in internal flash memory) OK --Expanded simple backup data OK --New application

instructions

Additional instruction functions

TXDU(256), RXDU(255) (support no-protocol communications with Serial Communications Units with unit version 1.2 or later)

Model conversion instructions: XFERC(565), DISTC(566), COLLC(567), MOVBC(568), BCNTC(621)

Special function block instructions: GETID(286) OK --PRV(881) and PRV2(883) instructions: Added high-

frequency calculation methods for calculating pulse frequency. (CJ1M CPU Units only)

OK ---

CJ1G-CPU@@P, C J1 M - C P U @@

Unit version 3.0 or

later

User programs that contain functions supported only by CPU Units with unit version 3.0 or later cannot be used on CS/CJ-series CPU Units with unit version 2.0 or earlier. An error message will be displayed if an attempt is made to download programs containing unit version 3.0 functions to a CPU Unit with a unit version of 2.0 or earlier, and the download will not be possible.

If an object program file (.OBJ) using these functions is transferred to a CPU Unit with a unit version of 2.0 or earlier, a program error will occur when operation is started or when the unit version 3.0 function is executed, and CPU Unit operation will stop.

Other unit versions

xii

• Functions Supported for Unit Version 2.0 or Later

CX-Programmer 4.0 or higher must be used to enable using the functions added for unit version 2.0.

CS1-H CPU Units

Function CS1-H CPU Units

(CS1@-CPU@@H)

Unit version 2.0 or later Other unit versions

Downloading and Uploading Individual Tasks OK --Improved Read Protection Using Passwords OK --Write Protection from FINS Commands Sent to CPU

Units via Networks Online Network Connections without I/O Tables OK --Communications through a Maximum of 8 Network Lev-

els Connecting Online to PLCs via NS-series PTs OK OK from lot number 030201 Setting First Slot Words OK for up to 64 groups OK for up to 8 groups Automatic Transfers at Power ON without a Parameter

File Automatic Detection of I/O Allocation Method for Auto-

matic Transfer at Power ON Operation Start/End Times OK --New Application

Instructions

MILH, MILR, MILC OK --=DT, <>DT, <DT, <=DT, >DT, >=DT OK --BCMP2 OK --GRY OK OK from lot number 030201 TPO OK --DSW, TKY, HKY, MTR, 7SEG OK --EXPLT, EGATR, ESATR, ECHRD,

ECHWR Reading/Writing CPU Bus Units

with IORD/IOWR PRV2 --- ---

OK ---

--- ---

OK ---

OK OK from lot number 030418

xiii

CS1D CPU Units

Function CS1D CPU Units for

Functions unique to CS1D CPU Units

Downloading and Uploading Individual Tasks OK --- --Improved Read Protection Using Passwords OK --- --Write Protection from FINS Commands Sent

to CPU Units via Networks Online Network Connections without I/O

Ta bl e s Communications through a Maximum of 8

Network Levels Connecting Online to PLCs via NS-series

PTs Setting First Slot Words OK for up to 64 groups --- --Automatic Transfers at Power ON without a

Parameter File Automatic Detection of I/O Allocation Method

for Automatic Transfer at Power ON Operation Start/End Times OK OK --New Applica-

tion Instructions

Duplex CPU Units --- OK OK Online Unit Replacement OK OK OK Duplex Power Supply Units OK OK OK Duplex Controller Link

Units Duplex Ethernet Units --- OK OK Unit removal without a

Programming Device

MILH, MILR, MILC OK --- --=DT, <>DT, <DT, <=DT,

>DT, >=DT BCMP2 OK --- --GRY OK --- --TPO OK --- --D S W, T K Y, H KY, MT R ,

7SEG EXPLT, EGATR, ESATR,

ECHRD, ECHWR Reading/Writing CPU Bus

Units with IORD/IOWR PRV2 OK --- ---

Single-CPU Systems

(CS1D-CPU@@S)

Unit version 2.0 Unit version 1.1 or

OK OK OK

--- OK (Unit version 1.2 or

OK --- ---

--- --- ---

OK --- ---

CS1D CPU Units for Duplex-CPU

Systems (CS1D-CPU@@H)

later

later)

Pre-Ver. 1.1

---

xiv

CJ1-H/CJ1M CPU Units

Function CJ1-H CPU Units

Downloading and Uploading Individual Tasks OK --- OK --- OK Improved Read Protection Using Passwords OK --- OK --- OK Write Protection from FINS Commands Sent

to CPU Units via Networks Online Network Connections without I/O

Ta bl e s

Communications through a Maximum of 8 Network Levels

Connecting Online to PLCs via NS-series PTs

Setting First Slot Words OK for up to

Automatic Transfers at Power ON without a Parameter File

Automatic Detection of I/O Allocation Method for Automatic Transfer at Power ON

Operation Start/End Times OK --- OK --- OK New Applica-

tion Instructions

MILH, MILR, MILC OK --- OK --- OK =DT, <>DT, <DT, <=DT, >DT,

>=DT BCMP2 OK --- OK OK OK GRY OK OK from lot

TPO OK --- OK --- OK DSW, TKY, HKY, MTR, 7SEG OK --- OK --- OK EXPLT, EGATR, ESATR,

ECHRD, ECHWR Reading/Writing CPU Bus

Units with IORD/IOWR PRV2 --- --- OK, but only

(CJ1@-CPU@@H)

(CJ1H-CPU@@H-R)

(CJ1@-CPU@@H) (CJ1G-CPU@@P)

Unit version

2.0 or later

OK --- OK --- OK

OK ---

OK --- OK --- OK

OK OK from lot

64 groups OK --- OK --- OK

--- --- --- --- ---

OK --- OK --- OK

Other unit

versions

(Supported if I/O tables are automatically generated at startup.)

number 030201

OK for up to 8 groups

number 030201

CJ1M-CPU12/13/22/23 CJ1M-

Unit version

2.0 or later

OK ---

OK OK from lot

OK for up to 64 groups

OK OK from lot

for CPU Units with built-in I/O

CJ1M CPU Units

Other unit

versions

(Supported if I/O tables are automatically generated at startup.)

number 030201

OK for up to 8 groups

number 030201

--- OK, but only

CPU11/21

Other unit

versions

OK for up to 64 groups

for CPU Units with built-in I/O

User programs that contain functions supported only by CPU Units with unit version 2.0 or later cannot be used on CS/CJ-series Pre-Ver. 2.0 CPU Units. An error message will be displayed if an attempt is made to download programs containing unit version s.0 functions to a Pre-Ver. 2.0 CPU Unit, and the download will not be possible.

If an object program file (.OBJ) using these functions is transferred to a PreVer. 2.0 CPU Unit, a program error will occur when operation is started or when the unit version 2.0 function is executed, and CPU Unit operation will stop.

Unit Versions and Programming Devices

The following tables show the relationship between unit versions and CX-Programmer versions.

Unit Versions and Programming Devices

CPU Unit Functions (See note 1.) CX-Programmer Program-

CS/CJ-series unit Ver. 4.0

CS/CJ-series unit Ver. 3.0

CS/CJ-series unit Ver. 2.0

CS1D CPU Units for Single-CPU Systems, unit Ver. 2.0

CS1D CPU Units for Duplex-CPU Systems, unit Ver.1.

Ver. 3.3

or lower

Functions added for unit version 4.0

Functions added for unit version 3.0

Functions added for unit version 2.0

Functions added for unit version 1.1

Using new functions --- --- --- OK (See

Not using new functions OK OK OK OK Using new functions --- --- OK OK Not using new functions OK OK OK OK Using new functions --- OK OK OK Not using new functions OK OK OK OK Using new functions --- OK OK OK Not using new functions

Using function blocks --- OK OK OK Not using function blocks OK OK OK OK

Note 1. As shown above, there is no need to upgrade to CX-Programmer version

as long as the functions added for unit versions are not used.

Ver. 4.0 Ver. 5.0

Ver. 6.0

Ver. 7.0

or higher

notes 2 and 3.)

ming

Console

No restrictions

2. CX-Programmer version 7.1 or higher is required to use the new functions added for unit version 4.0 of the CJ1-H-R CPU Units. CX-Programmer version 7.22 or higher is required to use unit version 4.1 of the CJ1-H-R CPU Units. CX-Programmer version 7.0 or higher is required to use unit version

4.2 of the CJ1-H-R CPU Units. You can check the CX-Programmer version using the About menu command to display version information.

3. CX-Programmer version 7.0 or higher is required to use the functional improvements made for unit version 4.0 of the CS/CJ-series CPU Units. With CX-Programmer version 7.2 or higher, you can use even more expanded functionality.

Device Type Setting The unit version does not affect the setting made for the device type on the

CX-Programmer. Select the device type as shown in the following table regardless of the unit version of the CPU Unit.

Series CPU Unit group CPU Unit model Device type setting on

CS Series CS1-H CPU Units CS1G-CPU@@H CS1G-H

CS1H-CPU@@H CS1H-H CS1D CPU Units for Duplex-CPU Systems CS1D-CPU@@H CS1D-H (or CS1H-H) CS1D CPU Units for Single-CPU Systems CS1D-CPU@@S CS1D-S

CJ Series CJ1-H CPU Units CJ1G-CPU@@H

CJ1G-CPU@@P

CJ1H-CPU@@H-R

(See note.)

CJ1H-CPU@@H CJ1M CPU Units CJ1M-CPU@@ CJ1M

CX-Programmer Ver. 4.0 or higher

CJ1G-H

CJ1H-H

xvi

Note When using a CJ1H-CPU@@H-R CPU Unit, set the CPU Unit model to

CPU67-R, CPU66-R, CPU65-R, or CPU64-R.

Troubleshooting Problems with Unit Versions on the CX-Programmer

Problem Cause Solution

An attempt was made to download a program containing instructions supported only by later unit versions or a CPU Unit to a previous unit version.

After the above message is displayed, a compiling error will be displayed on the Compile Tab Page in the Output Window.

An attempt was to download a PLC Setup containing settings supported only by later unit versions or a CPU Unit to a previous unit version.

Check the program or change to a CPU Unit with a later unit version.

Check the settings in the PLC Setup or change to a CPU Unit with a later unit version.

“????” is displayed in a program transferred from the PLC to the CX-Programmer.

An attempt was made to upload a program containing instructions supported only by higher versions of CX-Programmer to a lower version.

New instructions cannot be uploaded to lower versions of CX-Programmer. Use a higher version of CX-Programmer.

xvii

xviii

TABLE OF CONTENTS

PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv

1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxviii

5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxix

6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxii

SECTION 1

CPU Unit Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-1 Initial Setup (CS1 CPU Units Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 Using the Internal Clock (CS1 CPU Units Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1-3 Internal Structure of the CPU Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-4 Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1-5 Programs and Tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1-6 Description of Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

SECTION 2

Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2-1 Basic Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2-2 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

2-3 Checking Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

SECTION 3

Instruction Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

3-1 Sequence Input Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

3-2 Sequence Output Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

3-3 Sequence Control Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

3-4 Timer and Counter Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

3-5 Comparison Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

3-6 Data Movement Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

3-7 Data Shift Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

3-8 Increment/Decrement Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

3-9 Symbol Math Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100

3-10 Conversion Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

3-11 Logic Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

3-12 Special Math Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

3-13 Floating-point Math Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

3-14 Double-precision Floating-point Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

3-15 Table Data Processing Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

3-16 Data Control Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

3-17 Subroutine Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

3-18 Interrupt Control Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

3-19 High-speed Counter and Pulse Output Instructions (CJ1M-CPU21/22/23 Only) . . . . . . . . 136

3-20 Step Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

3-21 Basic I/O Unit Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

3-22 Serial Communications Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

3-23 Network Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143

3-24 File Memory Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

3-25 Display Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

3-26 Clock Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147

xix

TABLE OF CONTENTS

3-27 Debugging Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148

3-28 Failure Diagnosis Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149

3-29 Other Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

3-30 Block Programming Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

3-31 Text String Processing Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

3-32 Task Control Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

3-33 Model Conversion Instructions (CPU Unit Ver. 3.0 or Later Only) . . . . . . . . . . . . . . . . . . . 161

3-34 Special Function Block Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162

SECTION 4

Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163

4-1 Task Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164

4-2 Using Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

4-3 Interrupt Tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

4-4 Programming Device Operations for Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197

SECTION 5

File Memory Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199

5-1 File Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200

5-2 Manipulating Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

5-3 Using File Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253

SECTION 6

Advanced Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

6-1 Cycle Time/High-speed Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

6-2 Index Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

6-3 Serial Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .293

6-4 Changing the Timer/Counter PV Refresh Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

6-5 Using a Scheduled Interrupt as a High-precision Timer (CJ1-H-R and CJ1M Only) . . . . . 321

6-6 Startup Settings and Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323

6-7 Diagnostic Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337

6-8 CPU Processing Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .343

6-9 Peripheral Servicing Priority Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348

6-10 Battery-free Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353

6-11 Other Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356

SECTION 7

Program Transfer, Trial Operation, and Debugging . . . . . 359

7-1 Program Transfer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 360

7-2 Trial Operation and Debugging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361

Appendices

A PLC Comparison Charts: CJ-series, CS-series, C200HG/HE/HX, CQM1H, CVM1,

and CV-series PLCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .369

B Changes from Previous Host Link Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 399

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405

About this Manual:

This manual describes the programming of the CPU Units for CS/CJ-series Programmable Controllers (PLCs) and includes the sections described on the following page. The CS Series, CJ Series and NSJ Series are subdivided as shown in the following figure.

CS Series

CS1-H CPU Units

CS1H-CPU@@H CS1G-CPU@@H

CS1D CPU Units

CS1D CPU Units for Duplex Systems

CS1D-CPU@@H

CS1D CPU Units for Simplex Systems

CS1D-CPU@@S

CS1D Process-control CPU Units

CS1D-CPU@@P

CS1 CPU Units

CS1H-CPU@@(-V1) CS1G-CPU@@(-V1)

CS-series Basic I/O Units

CS-series Special I/O Units

CS-series CPU Bus Units

CS-series Power Supply Units

Note: A special Power Supply Unit must

be used for CS1D CPU Units.

CJ Series

CJ2 CPU Units

CJ2H-CPU@@-@@@

CJ1-H CPU Units

CJ1H-CPU@@H-R CJ1H-CPU@@H CJ1G-CPU@@H CJ1G -CPU@@P (Loop-control CPU Units)

CJ1M CPU Units

CJ1M-CPU@@

CJ1 CPU Units

CJ1G-CPU@@

CJ-series Basic I/O Units

CJ-series Special I/O Units

CJ-series CPU Bus Units

CJ-series Power Supply Units

NSJ Series

NSJ Controllers

NSJ5-TQ@@(B)-G5D NSJ5-SQ@@(B)-G5D NSJ8-TV@@(B)-G5D NSJ10-TV@@(B)-G5D NSJ12-TS@@(B)-G5D

NSJ Controllers

NSJ5-TQ@@(B)-M3D NSJ5-SQ@@(B)-M3D NSJ8-TV@@(B)-M3D

NSJ-series Expansion Units

Please read this manual and all related manuals listed in the table on the next page and be sure you understand information provided before attempting to install or use CS/CJ-series CPU Units in a PLC System.

NSJ-series Controller Notation

For information in this manual on the Controller Section of NSJ-series Controllers, refer to the information of the equivalent CJ-series PLC. The following models are equivalent.

NSJ-series Controllers Equivalent CJ-series CPU Unit

NSJ@-TQ@@(B)-G5D CJ1G-CPU45H with unit version 3.0 NSJ@-TQ@@(B)-M3D CJ1G-CPU45H with unit version 3.0 (See note.)

Note: The following points differ between the NSJ@-TQ@@(B)-M3D and the CJ1G-CPU45H.

Item CJ-series CPU Unit

CJ1G-CPU45H

I/O capacity 1280 points 640 points Program capacity 60 Ksteps 20 Ksteps No. of Expansion Racks 3 Racks max. 1 Rack max. EM Area 32 Kwords × 3 banks

E0_00000 - E2_32767

Function blocks Max. No. of definitions 1024 128

Max. No. of instances 2048 256

Controller Section in

NSJ@-@@@@(B)-M3D

None

xxi

Capacity in built-in

file memory

Item CJ-series CPU Unit

CJ1G-CPU45H

FB program memory 1024 KB 256 KB Variable tables 128 KB 64 KB

Controller Section in

NSJ@-@@@@(B)-M3D

This manual contains the following sections.

Precautions provides general precautions for using the CS/CJ-series Programmable Controllers (PLCs) and related devices.

Section 1 describes the basic structure and operation of the CPU Unit.

Section 2 describes basic information required to write, check, and input programs.

Section 3 outlines the instructions that can be used to write user programs.

Section 4 the operation of tasks.

Section 5 describes the functions used to manipulate file memory.

Section 6 provides details on the following advanced functions: cycle time/high-speed processing

functions, index register functions, serial communications functions, startup and maintenance functions, diagnostic and debugging functions, Programming Device functions, and the Basic I/O Unit input response time settings.

Section 7 describes the processes used to transfer the program to the CPU Unit and the functions that can be used to test and debug the program.

The Appendices provide a comparison of CS/CJ-series, restrictions in using C200H Special I/O Units, and changes made to Host Link Systems.

xxii

About this Manual, Continued

Name Cat. No. Contents

SYSMAC CS/CJ/NSJ Series CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H, CS1DCPU@@H, CS1D-CPU@@S, CJ1H-CPU@@H-R, CJ1GCPU@@, CJ1G/H-CPU@@H, CJ1G-CPU@@P, C J 1 M CPU@@, NSJ@-@@@@(B)-G5D, NSJ@-@@@@(B)-M3D Programmable Controllers Programming Manual

SYSMAC CS Series CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H Programmable Controllers Operation Manual SYSMAC CJ Series CJ1H-CPU@@H-R, CJ1G/H-CPU@@H, CJ1G-CPU@@P, CJ1G-CPU@@, CJ1M-CPU@@ Programmable Controllers Operation Manual

SYSMAC CJ Series CJ1M-CPU21/22/23 Built-in I/O Functions Operation Manual

SYSMAC CS Series CS1D-CPU@@H CPU Units CS1D-CPU@@S CPU Units CS1D-DPL1 Duplex Unit CS1D-PA207R Power Supply Unit Duplex System Operation Manual SYSMAC CS/CJ/NSJ Series CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H, CS1DCPU@@H, CS1D-CPU@@S, CJ1H-CPU@@H-R, CJ1GCPU@@, CJ1G/H-CPU@@H, CJ1G-CPU@@P, C J 1 M CPU@@, NSJ@-@@@@(B)-G5D, NSJ@-@@@@(B)-M3D Programmable Controllers Instructions Reference Manual SYSMAC CS/CJ Series CQM1H-PRO01-E, C200H-PRO27-E, CQM1-PRO01-E Programming Consoles Operation Manual

SYSMAC CS/CJ/NSJ Series CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H, CS1DCPU@@H, CS1D-CPU@@S, CJ1M-CPU@@, CJ1GCPU@@, CJ1G-CPU@@P, C J 1 G / H - C P U @@H, CS1WSCB@@-V1, CS1W-SCU@@-V1, CJ1W-SCU@@-V1, CP1H-X@@@@-@, CP1H-XA@@@@-@, CP1H-Y@@@@-@, NSJ@-@@@@(B)-G5D, NSJ@-@@@@(B)-M3D Communications Commands Reference Manual

NSJ Series NSJ5-TQ@@(B)-G5D, NSJ5-SQ@@(B)-G5D, NSJ8-

TV@@(B)-G5D, NSJ10-TV@@(B)-G5D, NSJ12-TS@@(B)- G5D

Operation Manual

W394 (This manual)

W339 Provides an outlines of and describes the design,

W393 Provides an outlines of and describes the design,

W395 Describes the functions of the built-in I/O for

W405 Provides an outline of and describes the design,

W340 Describes the ladder diagram programming

W341 Provides information on how to program and

W342 Describes the C-series (Host Link) and FINS

W452 Provides the following information about the NSJ-

This manual describes programming and other methods to use the functions of the CS/CJ/NSJseries PLCs.

installation, maintenance, and other basic operations for the CS-series PLCs.

installation, maintenance, and other basic operations for the CJ-series PLCs.

CJ1M CPU Units.

installation, maintenance, and other basic operations for a Duplex System based on CS1D CPU Units.

instructions supported by CS/CJ-series PLCs.

operate CS/CJ-series PLCs using a Programming Console.

communications commands used with CS/CJseries PLCs.

series NSJ Controllers: Overview and features Designing the system configuration Installation and wiring I/O memory allocations Troubleshooting and maintenance Use this manual in combination with the following

manuals: SYSMAC CS Series Operation Manual (W339), SYSMAC CJ Series Operation Manual (W393), SYSMAC CS/CJ Series Programming Manual (W394), and NS-V1/-V2 Series Setup Manual (V083)

xxiii

Name Cat. No. Contents

SYSMAC WS02-CX@@-V@ CX-Programmer Operation Manual

SYSMAC WS02-CX@@-V@ CX-Programmer Operation Manual: Function Blocks

(CS1G-CPU CJ1H-CPU@@H, CJ1M-CPU@@, CP1H-X@@@@-@, CP1H-XA SYSMAC CS/CJ Series Programming Consoles Operation Manual CQM1H-PRO01-E, CQM1-PRO01-E, C200H-PRO27-E

SYSMAC CS/CJ Series CS1W-SCB CJ1W-SCU Serial Communications Boards/Units Operation Manual

SYSMAC WS02-PSTC1-E CX-Protocol Operation Manual

CXONE-AL@@C-V@/AL@@D-V@

CX-Integrator Operation Manual

CXONE-AL@@C-V@/AL@@D-V@

CX-One Setup Manual

@@H, CS1H-CPU@@H, CJ1G-CPU@@H,

@@@@-@, and CP1H-Y@@@@-@ CPU Units)

@@-V1, CS1W-SCU@@-V1, @@-V1

W446 Provides information on how to use the CX-Pro-

grammer for all functionality except for function blocks.

W447 Describes specifications and operation methods

related to function blocks. This information is required only when using function blocks.

W341 Provides information on how to program and

operate CS/CJ-series PLCs using a Programming Console.

When programming, use this manual together with the Programmable Controllers Operation Manual (W339 for CS-series PLCs and W393 for CJ-series PLCs), CS/CJ-series Programmable Controllers Programming Manual (W394,) and the CS/CJ-series Programmable Controllers Instructions Reference Manual (W340).

W336 Describes the use of Serial Communications Unit

and Boards to perform serial communications with external devices, including the use of standard system protocols for OMRON products.

Refer to the CS/CJ Series Communications Commands Reference Manual (W342) for details on sending commands in host link mode from a Serial Communications Board or Unit’s port.

Refer to the WS02-PSTC1-E CX-Protocol Operation Manual (W344) for details on creating protocol macros.

W344 Describes the use of the CX-Protocol to create

protocol macros as communications sequences to communicate with external devices.

W464 Describes operating procedures for the CX-Inte-

grator Network Configuration Tool for CS-, CJ-, CP-, and NSJ-series Controllers.

W463 Installation and overview of CX-One FA Inte-

grated Tool Package.

!WARNING Failure to read and understand the information provided in this manual may result in per-

sonal injury or death, damage to the product, or product failure. Please read each section in its entirety and be sure you understand the information provided in the section and related sections before attempting any of the procedures or operations given.

xxiv

PRECAUTIONS

This section provides general precautions for using the CS/CJ-series Programmable Controllers (PLCs) and related devices.

The information contained in this section is important for the safe and reliable application of Programmable Controllers. You must read this section and understand the information contained before attempting to set up or operate a PLC system.

1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxviii

5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxix

6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxii

6-1 Applicable Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxii

6-2 Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxiii

6-3 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxxiii

6-4 Relay Output Noise Reduction Methods . . . . . . . . . . . . . . . . . . . . . xxxiii

xxv

Intended Audience 1

1 Intended Audience

This manual is intended for the following personnel, who must also have knowledge of electrical systems (an electrical engineer or the equivalent).

• Personnel in charge of installing FA systems.

• Personnel in charge of designing FA systems.

• Personnel in charge of managing FA systems and facilities.

2 General Precautions

The user must operate the product according to the performance specifications described in the operation manuals.

Before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems, machines, and equipment that may have a serious influence on lives and property if used improperly, consult your OMRON representative.

Make sure that the ratings and performance characteristics of the product are sufficient for the systems, machines, and equipment, and be sure to provide the systems, machines, and equipment with double safety mechanisms.

This manual provides information for programming and operating the Unit. Be sure to read this manual before attempting to use the Unit and keep this manual close at hand for reference during operation.

!WARNING It is extremely important that a PLC and all PLC Units be used for the speci-

fied purpose and under the specified conditions, especially in applications that can directly or indirectly affect human life. You must consult with your OMRON representative before applying a PLC System to the above-mentioned applications.

3 Safety Precautions

!WARNING The CPU Unit refreshes I/O even when the program is stopped (i.e., even in

PROGRAM mode). Confirm safety thoroughly in advance before changing the status of any part of memory allocated to I/O Units, Special I/O Units, or CPU Bus Units. Any changes to the data allocated to any Unit may result in unexpected operation of the loads connected to the Unit. Any of the following operation may result in changes to memory status.

• Transferring I/O memory data to the CPU Unit from a Programming Device.

• Changing present values in memory from a Programming Device.

• Force-setting/-resetting bits from a Programming Device.

• Transferring I/O memory files from a Memory Card or EM file memory to the CPU Unit.

• Transferring I/O memory from a host computer or from another PLC on a network.

xxvi

!WARNING Do not attempt to take any Unit apart while the power is being supplied. Doing

so may result in electric shock.

Safety Precautions 3

!WARNING Do not touch any of the terminals or terminal blocks while the power is being

supplied. Doing so may result in electric shock.

!WARNING Do not attempt to disassemble, repair, or modify any Units. Any attempt to do

so may result in malfunction, fire, or electric shock.

!WARNING Provide safety measures in external circuits (i.e., not in the Programmable

Controller), including the following items, to ensure safety in the system if an abnormality occurs due to malfunction of the PLC or another external factor affecting the PLC operation. Not doing so may result in serious accidents.

• Emergency stop circuits, interlock circuits, limit circuits, and similar safety measures must be provided in external control circuits.

• The PLC will turn OFF all outputs when its self-diagnosis function detects any error or when a severe failure alarm (FALS) instruction is executed. Unexpected operation, however, may still occur for errors in the I/O control section, errors in I/O memory, and other errors that cannot be detected by the self-diagnosis function. As a countermeasure for all such errors, external safety measures must be provided to ensure safety in the system.

• The PLC outputs may remain ON or OFF due to deposition or burning of the output relays or destruction of the output transistors. As a countermeasure for such problems, external safety measures must be provided to ensure safety in the system.

• When the 24-V DC output (service power supply to the PLC) is overloaded or short-circuited, the voltage may drop and result in the outputs being turned OFF. As a countermeasure for such problems, external safety measures must be provided to ensure safety in the system.

!Caution Confirm safety before transferring data files stored in the file memory (Mem-

ory Card or EM file memory) to the I/O area (CIO) of the CPU Unit using a peripheral tool. Otherwise, the devices connected to the output unit may malfunction regardless of the operation mode of the CPU Unit.

!Caution Fail-safe measures must be taken by the customer to ensure safety in the

event of incorrect, missing, or abnormal signals caused by broken signal lines, momentary power interruptions, or other causes. Abnormal operation may result in serious accidents.

!Caution The CS1-H, CJ1-H, CJ1M, and CS1D CPU Units automatically back up the

user program and parameter data to flash memory when these are written to the CPU Unit. I/O memory (including the DM, EM, and HR Areas), however, is not written to flash memory. The DM, EM, and HR Areas can be held during power interruptions with a battery. If there is a battery error, the contents of these areas may not be accurate after a power interruption. If the contents of the DM, EM, and HR Areas are used to control external outputs, prevent inappropriate outputs from being made whenever the Battery Error Flag (A40204) is ON.

!Caution Execute online edit only after confirming that no adverse effects will be

caused by extending the cycle time. Otherwise, the input signals may not be readable.

xxvii

Operating Environment Precautions 4

!Caution Confirm safety at the destination node before transferring a program to

another node or changing contents of the I/O memory area. Doing either of these without confirming safety may result in injury.

!Caution Tighten the screws on the terminal block of the AC Power Supply Unit to the

torque specified in the operation manual. The loose screws may result in burning or malfunction.

!Caution Do not touch the Power Supply Unit when power is being supplied or immedi-

ately after the power supply is turned OFF. The Power Supply Unit will be hot and you may be burned.

!Caution Be careful when connecting personal computers or other peripheral devices

to a PLC to which is mounted a non-insulated Unit (CS1W-CLK12/52(-V1) or CS1W-ETN01) connected to an external power supply. A short-circuit will be created if the 24 V side of the external power supply is grounded and the 0 V side of the peripheral device is grounded. When connecting a peripheral device to this type of PLC, either ground the 0 V side of the external power supply or do not ground the external power supply at all.

4 Operating Environment Precautions

!Caution Do not operate the control system in the following locations:

• Locations subject to direct sunlight.

• Locations subject to temperatures or humidity outside the range specified in the specifications.

• Locations subject to condensation as the result of severe changes in temperature.

• Locations subject to corrosive or flammable gases.

• Locations subject to dust (especially iron dust) or salts.

• Locations subject to exposure to water, oil, or chemicals.

• Locations subject to shock or vibration.

!Caution Take appropriate and sufficient countermeasures when installing systems in

the following locations:

• Locations subject to static electricity or other forms of noise.

• Locations subject to strong electromagnetic fields.

• Locations subject to possible exposure to radioactivity.

• Locations close to power supplies.

!Caution The operating environment of the PLC System can have a large effect on the

longevity and reliability of the system. Improper operating environments can lead to malfunction, failure, and other unforeseeable problems with the PLC System. Be sure that the operating environment is within the specified conditions at installation and remains within the specified conditions during the life of the system.

xxviii

Application Precautions 5

5 Application Precautions

Observe the following precautions when using the PLC System.

• You must use the CX-Programmer (programming software that runs on Windows) if you need to program more than one task. A Programming Console can be used to program only one cyclic task plus interrupt tasks. A Programming Console can, however, be used to edit multitask programs originally created with the CX-Programmer.

!WARNING Always heed these precautions. Failure to abide by the following precautions

could lead to serious or possibly fatal injury.

• Always connect to a ground of 100 Ω or less when installing the Units. Not connecting to a ground of 100 Ω or less may result in electric shock.

• A ground of 100 Ω or less must be installed when shorting the GR and LG terminals on the Power Supply Unit.

• Always turn OFF the power supply to the PLC before attempting any of the following. Not turning OFF the power supply may result in malfunction or electric shock.

• Mounting or dismounting Power Supply Units, I/O Units, CPU Units, Inner Boards, or any other Units.

• Assembling the Units.

• Setting DIP switches or rotary switches.

• Connecting cables or wiring the system.

• Connecting or disconnecting the connectors.

!Caution Failure to abide by the following precautions could lead to faulty operation of

the PLC or the system, or could damage the PLC or PLC Units. Always heed these precautions.

• The user program and parameter area data in the CS1-H, CS1D, CJ1-H, and CJ1M CPU Units are backed up in the built-in flash memory. The BKUP indicator will light on the front of the CPU Unit when the backup operation is in progress. Do not turn OFF the power supply to the CPU Unit when the BKUP indicator is lit. The data will not be backed up if power is turned OFF.

• When using a CS-series CS1 CPU Unit for the first time, install the CS1W-BAT1 Battery provided with the Unit and clear all memory areas from a Programming Device before starting to program. When using the internal clock, turn ON power after installing the battery and set the clock from a Programming Device or using the DATE(735) instruction. The clock will not start until the time has been set.

• When the CPU Unit is shipped from the factory, the PLC Setup is set so that the CPU Unit will start in the operating mode set on the Programming Console mode switch. When a Programming Console is not connected, a CS-series CS1 CPU Unit will start in PROGRAM mode, but a CS1-H, CS1D, CJ1, CJ1-H, or CJ1M CPU Unit will start in RUN mode and operation will begin immediately. Do not advertently or inadvertently allow operation to start without confirming that it is safe.

• When creating an AUTOEXEC.IOM file from a Programming Device (a Programming Console or the CX-Programmer) to automatically transfer data at startup, set the first write address to D20000 and be sure that the

xxix

Application Precautions 5

size of data written does not exceed the size of the DM Area. When the data file is read from the Memory Card at startup, data will be written in the CPU Unit starting at D20000 even if another address was set when the AUTOEXEC.IOM file was created. Also, if the DM Area is exceeded (which is possible when the CX-Programmer is used), the remaining data will be written to the EM Area.

• Always turn ON power to the PLC before turning ON power to the control system. If the PLC power supply is turned ON after the control power supply, temporary errors may result in control system signals because the output terminals on DC Output Units and other Units will momentarily turn ON when power is turned ON to the PLC.

• Fail-safe measures must be taken by the customer to ensure safety in the event that outputs from Output Units remain ON as a result of internal circuit failures, which can occur in relays, transistors, and other elements.

• Fail-safe measures must be taken by the customer to ensure safety in the event of incorrect, missing, or abnormal signals caused by broken signal lines, momentary power interruptions, or other causes.

• Interlock circuits, limit circuits, and similar safety measures in external circuits (i.e., not in the Programmable Controller) must be provided by the customer.

• Do not turn OFF the power supply to the PLC when data is being transferred. In particular, do not turn OFF the power supply when reading or writing a Memory Card. Also, do not remove the Memory Card when the BUSY indicator is lit. To remove a Memory Card, first press the memory card power supply switch and then wait for the BUSY indicator to go out before removing the Memory Card.

• If the I/O Hold Bit is turned ON, the outputs from the PLC will not be turned OFF and will maintain their previous status when the PLC is switched from RUN or MONITOR mode to PROGRAM mode. Make sure that the external loads will not produce dangerous conditions when this occurs. (When operation stops for a fatal error, including those produced with the FALS(007) instruction, all outputs from Output Unit will be turned OFF and only the internal output status will be maintained.)

• The contents of the DM, EM, and HR Areas in the CPU Unit are backed up by a Battery. If the Battery voltage drops, this data may be lost. Provide countermeasures in the program using the Battery Error Flag (A40204) to re-initialize data or take other actions if the Battery voltage drops.

• When supplying power at 200 to 240 V AC with a CS-series PLC, always remove the metal jumper from the voltage selector terminals on the Power Supply Unit (except for Power Supply Units with wide-range specifications). The product will be destroyed if 200 to 240 V AC is supplied while the metal jumper is attached.

• Always use the power supply voltages specified in the operation manuals. An incorrect voltage may result in malfunction or burning.

• Take appropriate measures to ensure that the specified power with the rated voltage and frequency is supplied. Be particularly careful in places where the power supply is unstable. An incorrect power supply may result in malfunction.

• Install external breakers and take other safety measures against short-circuiting in external wiring. Insufficient safety measures against short-circuiting may result in burning.

• Do not apply voltages to the Input Units in excess of the rated input voltage. Excess voltages may result in burning.

xxx

+ 418 hidden pages