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

iv

Notice:

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

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.

OMRON, 2001

All rights reserved. No part of this publication may be reproduced, stored in a retrieval 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.

v

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.	Unit version
	Example for Unit version 3.0
Lot No. 040715 0000	Ver.3.0
OMRON Corporation	MADE IN JAPAN

Confirming Unit Versions with Support Software

•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.

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.

vi

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

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 following table.

Product nameplate CPU Units on which no unit version is	Units on which a version is given
given	(Ver. @.@)

	Lot No. XXXXXX XXXX		Lot No. XXXXXX XXXX	Ver. @ .@
	OMRON Corporation MADE IN JAPAN
Meaning
Designating individual	Pre-Ver. 2.0	CS1-H CPU Units	CS1H-CPU67H CPU Unit Ver. @.@
CPU Units (e.g., the
CS1H-CPU67H)
Designating groups of	Pre-Ver. 2.0	CS1-H CPU Units	CS1-H CPU Units Ver. @.@
CPU Units (e.g., the
CS1-H CPU Units)
Designating an entire	Pre-Ver. 2.0	CS-series CPU Units	CS-series CPU Units Ver. @.@
series of CPU Units
(e.g., the CS-series CPU
Units)

ix

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	Unit version 1.2
	CS1D-CPU@@H
		Unit version 1.1
		Pre-Ver. 1.1
	Single-CPU Systems	Unit version 2.0
	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
		Unit version 4.1
		Unit version 4.0
	CJ1@-CPU@@H	Unit version 4.0
	CJ1@-CPU@@P	Unit version 3.0
		Unit version 2.0
		Pre-Ver. 2.0
CJ1M CPU Units	CJ1M-CPU12/13	Unit version 4.0
	CJ1M-CPU22/23	Unit version 3.0
		Unit version 2.0
		Pre-Ver. 2.0
	CJ1M-CPU11/21	Unit version 4.0
		Unit version 3.0
		Unit version 2.0

NSJ Series

Units	Unit version
NSJ@-TQ@@(B)-G5D	Unit version 3.0
NSJ@-TQ@@(B)-M3D

x

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		OK	---
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	Number-Text String Conversion Instructions:	OK	---
instructions	NUM4, NUM8, NUM16, STR4, STR8, and STR16
	TEXT FILE WRITE (TWRIT)	OK	---
ST programming in task programs		OK with CX-Program-	---
		mer version 7.2 or higher
SFC programming in task programs		OK with CX-Program-	---
		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, CJ1M-CPU@@
			Unit version 4.0 or later	Other unit versions
Online editing of function blocks			OK	---
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	Number-Text String Conversion Instructions:		OK	---
instructions	NUM4, NUM8, NUM16, STR4, STR8, and STR16
	TEXT FILE WRITE (TWRIT)		OK	---
ST programming in task programs			OK with CX-Program-	---
			mer version 7.2 or higher
SFC programming in task programs			OK with CX-Program-	---
			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.

xi

• 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	Other unit versions
				later
Function blocks				OK	---
Serial Gateway (converting FINS commands to CompoWay/F				OK	---
commands at the built-in serial port)
Comment memory (in internal flash memory)				OK	---
Expanded simple backup data				OK	---
New application		TXDU(256), RXDU(255) (support no-protocol com-		OK	---
instructions		munications with Serial Communications Units with
		unit version 1.2 or later)
		Model conversion instructions: XFERC(565),		OK	---
		DISTC(566), COLLC(567), MOVBC(568),
		BCNTC(621)
		Special function block instructions: GETID(286)		OK	---
Additional		TXD(235) and RXD(236) instructions (support no-		OK	---
instruction func-		protocol communications with Serial Communica-
tions		tions Boards with unit version 1.2 or later)
CS1D CPU Units			Unit version 3.0 is not supported.
CJ1-H/CJ1M CPU Units
		Function		CJ1H-CPU@@H-R, CJ1@-CPU@@H,
				CJ1G-CPU@@P, CJ1M-CPU@@
				Unit version 3.0 or	Other unit versions
				later
Function blocks				OK	---
Serial Gateway (converting FINS commands to CompoWay/F				OK	---
commands at the built-in serial port)
Comment memory (in internal flash memory)				OK	---
Expanded simple backup data				OK	---
New application		TXDU(256), RXDU(255) (support no-protocol com-		OK	---
instructions		munications with Serial Communications Units with
		unit version 1.2 or later)
		Model conversion instructions: XFERC(565),		OK	---
		DISTC(566), COLLC(567), MOVBC(568),
		BCNTC(621)
		Special function block instructions: GETID(286)		OK	---
Additional		PRV(881) and PRV2(883) instructions: Added high-		OK	---
instruction func-		frequency calculation methods for calculating pulse
tions		frequency. (CJ1M CPU Units only)

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.

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		OK	---
	Units via Networks
	Online Network Connections without I/O Tables		OK	---
	Communications through a Maximum of 8 Network Lev-		OK	---
	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		OK	---
	File
	Automatic Detection of I/O Allocation Method for Auto-		---	---
	matic Transfer at Power ON
	Operation Start/End Times		OK	---
	New Application	MILH, MILR, MILC	OK	---
	Instructions
		=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,	OK	---
		ECHWR
		Reading/Writing CPU Bus Units	OK	OK from lot number 030418
		with IORD/IOWR
		PRV2	---	---

xiii

CS1D CPU Units

		Function	CS1D CPU Units for	CS1D CPU Units for Duplex-CPU
			Single-CPU Systems	Systems (CS1D-CPU@@H)
			(CS1D-CPU@@S)
			Unit version 2.0	Unit version 1.1 or	Pre-Ver. 1.1
				later
	Functions	Duplex CPU Units	---	OK	OK
	unique to CS1D
		Online Unit Replacement	OK	OK	OK
	CPU Units
		Duplex Power Supply Units	OK	OK	OK
		Duplex Controller Link	OK	OK	OK
		Units
		Duplex Ethernet Units	---	OK	OK
		Unit removal without a	---	OK (Unit version 1.2 or	---
		Programming Device		later)
	Downloading and Uploading Individual Tasks		OK	---	---
	Improved Read Protection Using Passwords		OK	---	---
	Write Protection from FINS Commands Sent		OK	---	---
	to CPU Units via Networks
	Online Network Connections without I/O		OK	---	---
	Tables
	Communications through a Maximum of 8		OK	---	---
	Network Levels
	Connecting Online to PLCs via NS-series		OK	---	---
	PTs
	Setting First Slot Words		OK for up to 64 groups	---	---
	Automatic Transfers at Power ON without a		OK	---	---
	Parameter File
	Automatic Detection of I/O Allocation Method		---	---	---
	for Automatic Transfer at Power ON
	Operation Start/End Times		OK	OK	---
	New Applica-	MILH, MILR, MILC	OK	---	---
	tion Instructions
		=DT, <>DT, <DT, <=DT,	OK	---	---
		>DT, >=DT
		BCMP2	OK	---	---
		GRY	OK	---	---
		TPO	OK	---	---
		DSW, TKY, HKY, MTR,	OK	---	---
		7SEG
		EXPLT, EGATR, ESATR,	OK	---	---
		ECHRD, ECHWR
		Reading/Writing CPU Bus	OK	---	---
		Units with IORD/IOWR
		PRV2	OK	---	---

xiv

CJ1-H/CJ1M CPU Units

		Function	CJ1-H CPU Units		CJ1M CPU Units
			(CJ1@-CPU@@H)
			(CJ1H-CPU@@H-R)		CJ1M-CPU12/13/22/23		CJ1M-
			(CJ1@-CPU@@H)				CPU11/21
			(CJ1G-CPU@@P)
			Unit version	Other unit	Unit version	Other unit	Other unit
			2.0 or later	versions	2.0 or later	versions	versions
Downloading and Uploading Individual Tasks			OK	---	OK	---	OK
Improved Read Protection Using Passwords			OK	---	OK	---	OK
Write Protection from FINS Commands Sent			OK	---	OK	---	OK
to CPU Units via Networks
Online Network Connections without I/O			OK	---	OK	---	OK
Tables				(Supported if		(Supported if
				I/O tables are		I/O tables are
				automatically		automatically
				generated at		generated at
				startup.)		startup.)
Communications through a Maximum of 8			OK	---	OK	---	OK
Network Levels
Connecting Online to PLCs via NS-series			OK	OK from lot	OK	OK from lot	OK
PTs				number		number
				030201		030201
Setting First Slot Words			OK for up to	OK for up to	OK for up to	OK for up to	OK for up to
			64 groups	8 groups	64 groups	8 groups	64 groups
Automatic Transfers at Power ON without a			OK	---	OK	---	OK
Parameter File
Automatic Detection of I/O Allocation Method			---	---	---	---	---
for Automatic Transfer at Power ON
Operation Start/End Times			OK	---	OK	---	OK
New Applica-	MILH, MILR, MILC		OK	---	OK	---	OK
tion Instruc-
		=DT, <>DT, <DT, <=DT, >DT,	OK	---	OK	---	OK
tions
		>=DT
		BCMP2	OK	---	OK	OK	OK
		GRY	OK	OK from lot	OK	OK from lot	OK
				number		number
				030201		030201
		TPO	OK	---	OK	---	OK
		DSW, TKY, HKY, MTR, 7SEG	OK	---	OK	---	OK
		EXPLT, EGATR, ESATR,	OK	---	OK	---	OK
		ECHRD, ECHWR
		Reading/Writing CPU Bus	OK	---	OK	---	OK
		Units with IORD/IOWR
		PRV2	---	---	OK, but only	---	OK, but only
					for CPU Units		for CPU Units
					with built-in		with built-in
					I/O		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.

xv

Unit Versions and Programming Devices

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

Unit Versions and Programming Devices

CPU Unit	Functions (See note 1.)			CX-Programmer			Program-
							ming
			Ver. 3.3	Ver. 4.0	Ver. 5.0	Ver. 7.0
							Console
			or lower		Ver. 6.0	or higher
CS/CJ-series unit	Functions added	Using new functions	---	---	---	OK (See	No
Ver. 4.0	for unit version 4.0					notes 2	restric-
						and 3.)	tions
		Not using new functions	OK	OK	OK	OK
CS/CJ-series unit	Functions added	Using new functions	---	---	OK	OK
Ver. 3.0	for unit version 3.0
		Not using new functions	OK	OK	OK	OK
CS/CJ-series unit	Functions added	Using new functions	---	OK	OK	OK
Ver. 2.0	for unit version 2.0
		Not using new functions	OK	OK	OK	OK
CS1D CPU Units	Functions added	Using new functions	---	OK	OK	OK
for Single-CPU Sys-	for unit version 2.0
		Not using new functions
tems, unit Ver. 2.0
CS1D CPU Units	Functions added	Using function blocks	---	OK	OK	OK
for Duplex-CPU	for unit version 1.1
		Not using function blocks	OK	OK	OK	OK
Systems, unit Ver.1.

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.

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
				CX-Programmer Ver. 4.0 or higher
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-H
			CJ1G-CPU@@P
			CJ1H-CPU@@H-R	CJ1H-H
			(See note.)
			CJ1H-CPU@@H
	CJ1M CPU Units		CJ1M-CPU@@	CJ1M

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.

xvi

Troubleshooting Problems with Unit Versions on the CX-Programmer

Problem	Cause	Solution
	An attempt was made to down-	Check the program or change
	load a program containing	to a CPU Unit with a later unit
	instructions supported only by	version.
	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	Check the settings in the PLC
	PLC Setup containing settings	Setup or change to a CPU Unit
	supported only by later unit ver-	with a later unit version.
	sions or a CPU Unit to a previous
	unit version.
“????” is displayed in a program transferred from the	An attempt was made to upload a	New instructions cannot be
PLC to the CX-Programmer.	program containing instructions	uploaded to lower versions of
	supported only by higher versions	CX-Programmer. Use a higher
	of CX-Programmer to a lower	version of CX-Programmer.
	version.

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

xx

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	Controller Section in
			CJ1G-CPU45H	NSJ@-@@@@(B)-M3D
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	None
			E0_00000 - E2_32767
Function blocks		Max. No. of definitions	1024	128
		Max. No. of instances	2048	256

xxi

	Item		CJ-series CPU Unit	Controller Section in
			CJ1G-CPU45H	NSJ@-@@@@(B)-M3D
Capacity in built-in		FB program memory	1024 KB	256 KB
file memory		Variable tables	128 KB	64 KB

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	W394	This manual describes programming and other
CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H, CS1D-	(This	methods to use the functions of the CS/CJ/NSJ-
CPU@@H, CS1D-CPU@@S, CJ1H-CPU@@H-R, CJ1G-	manual)	series PLCs.
CPU@@, CJ1G/H-CPU@@H, CJ1G-CPU@@P, CJ1M-
CPU@@, NSJ@-@@@@(B)-G5D, NSJ@-@@@@(B)-M3D
Programmable Controllers Programming Manual
SYSMAC CS Series	W339	Provides an outlines of and describes the design,
CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H		installation, maintenance, and other basic opera-
Programmable Controllers Operation Manual		tions for the CS-series PLCs.
SYSMAC CJ Series	W393	Provides an outlines of and describes the design,
CJ1H-CPU@@H-R, CJ1G/H-CPU@@H, CJ1G-CPU@@P,		installation, maintenance, and other basic opera-
CJ1G-CPU@@, CJ1M-CPU@@		tions for the CJ-series PLCs.
Programmable Controllers Operation Manual
SYSMAC CJ Series	W395	Describes the functions of the built-in I/O for
CJ1M-CPU21/22/23		CJ1M CPU Units.
Built-in I/O Functions Operation Manual
SYSMAC CS Series	W405	Provides an outline of and describes the design,
CS1D-CPU@@H CPU Units		installation, maintenance, and other basic opera-
CS1D-CPU@@S CPU Units		tions for a Duplex System based on CS1D CPU
CS1D-DPL1 Duplex Unit		Units.
CS1D-PA207R Power Supply Unit
Duplex System Operation Manual
SYSMAC CS/CJ/NSJ Series	W340	Describes the ladder diagram programming
CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H, CS1D-		instructions supported by CS/CJ-series PLCs.
CPU@@H, CS1D-CPU@@S, CJ1H-CPU@@H-R, CJ1G-
CPU@@, CJ1G/H-CPU@@H, CJ1G-CPU@@P, CJ1M-
CPU@@, NSJ@-@@@@(B)-G5D, NSJ@-@@@@(B)-M3D
Programmable Controllers Instructions Reference Manual
SYSMAC CS/CJ Series	W341	Provides information on how to program and
CQM1H-PRO01-E, C200H-PRO27-E, CQM1-PRO01-E		operate CS/CJ-series PLCs using a Programming
Programming Consoles Operation Manual		Console.
SYSMAC CS/CJ/NSJ Series	W342	Describes the C-series (Host Link) and FINS
CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H, CS1D-		communications commands used with CS/CJ-
CPU@@H, CS1D-CPU@@S, CJ1M-CPU@@, CJ1G-		series PLCs.
CPU@@, CJ1G-CPU@@P, CJ1G/H-CPU@@H, CS1W-
SCB@@-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	W452	Provides the following information about the NSJ-
NSJ5-TQ@@(B)-G5D, NSJ5-SQ@@(B)-G5D, NSJ8-		series NSJ Controllers:
		Overview and features
TV@@(B)-G5D, NSJ10-TV@@(B)-G5D, NSJ12-TS@@(B)-
G5D		Designing the system configuration
Operation Manual		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@	W446	Provides information on how to use the CX-Pro-
CX-Programmer Operation Manual		grammer for all functionality except for function
		blocks.
SYSMAC WS02-CX@@-V@	W447	Describes specifications and operation methods
CX-Programmer Operation Manual: Function Blocks		related to function blocks. This information is
(CS1G-CPU@@H, CS1H-CPU@@H, CJ1G-CPU@@H,		required only when using function blocks.
CJ1H-CPU@@H, CJ1M-CPU@@, CP1H-X@@@@-@,
CP1H-XA@@@@-@, and CP1H-Y@@@@-@ CPU Units)
SYSMAC CS/CJ Series	W341	Provides information on how to program and
Programming Consoles Operation Manual		operate CS/CJ-series PLCs using a Programming
CQM1H-PRO01-E, CQM1-PRO01-E, C200H-PRO27-E		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).
SYSMAC CS/CJ Series	W336	Describes the use of Serial Communications Unit
CS1W-SCB@@-V1, CS1W-SCU@@-V1,		and Boards to perform serial communications
CJ1W-SCU@@-V1		with external devices, including the use of stan-
Serial Communications Boards/Units Operation Manual		dard system protocols for OMRON products.
		Refer to the CS/CJ Series Communications Com-
		mands 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 Opera-
		tion Manual (W344) for details on creating proto-
		col macros.
SYSMAC WS02-PSTC1-E	W344	Describes the use of the CX-Protocol to create
CX-Protocol Operation Manual		protocol macros as communications sequences
		to communicate with external devices.
CXONE-AL@@C-V@/AL@@D-V@	W464	Describes operating procedures for the CX-Inte-
CX-Integrator Operation Manual		grator Network Configuration Tool for CS-, CJ-,
		CP-, and NSJ-series Controllers.
CXONE-AL@@C-V@/AL@@D-V@	W463	Installation and overview of CX-One FA Inte-
CX-One Setup Manual		grated Tool Package.

!WARNING Failure to read and understand the information provided in this manual may result in personal 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 specified 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.

!WARNING Do not attempt to take any Unit apart while the power is being supplied. Doing so may result in electric shock.

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!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 (Memory 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.

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!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 immediately 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.

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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

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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-cir- cuiting in external wiring. Insufficient safety measures against short-cir- cuiting 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.

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