Omron SYSMAC CS Series Owner's manual

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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 dam-
age to property.
'$1*(5 Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
:$51,1* Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
&DXWLRQ Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury, or property damage.
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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 “PC” means Programmable Controller and is not used as an abbreviation for anything
else.
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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...  ,QGLFDWHVOLVWVRIRQHVRUWRUDQRWKHUVXFKDVSURFHGXUHVFKHFNOLVWVHWF
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 con-
stantly 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.

vi

vii
TABLE OF CONTENTS
PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xiv
6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
SECTION 1
CPU Unit Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1 Checking the Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 Initial Setup (CS-series CPU Units Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1-3 Using the Internal Clock (CS-series CPU Units Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1-4 Internal Structure of the CPU Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-5 Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1-6 Programs and Tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1-7 Description of Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SECTION 2
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2-1 Basic Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2-2 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
2-3 Checking Programs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
SECTION 3
Instruction Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
3-1 Sequence Input Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
3-2 Sequence Output Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
3-3 Sequence Control Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
3-4 Timer and Counter Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
3-5 Comparison Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78
3-6 Data Movement Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
3-7 Data Shift Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
3-8 Increment/Decrement Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
3-9 Symbol Math Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88
3-10 Conversion Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
3-11 Logic Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
3-12 Special Math Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
3-13 Floating-point Math Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
3-14 Table Data Processing Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
3-15 Data Control Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
3-16 Subroutine Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
3-17 Interrupt Control Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
3-18 Step Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
3-19 Basic I/O Unit Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
3-20 Serial Communications Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
3-21 Network Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
3-22 File Memory Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
3-23 Display Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

viii
TABLE OF CONTENTS
3-24 Clock Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
3-25 Debugging Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
3-26 Failure Diagnosis Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121
3-27 Other Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
3-28 Block Programming Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
3-29 Text String Processing Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
3-30 Task Control Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
SECTION 4
Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
4-1 Task Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
4-2 Using Tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
4-3 Interrupt Tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
4-4 Programming Device Operations for Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
SECTION 5
File Memory Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
5-1 File Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
5-2 Manipulating Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
5-3 Using File Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
SECTION 6
Advanced Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
6-1 Cycle Time/High-speed Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
6-2 Index Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
6-3 Serial Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221
6-4 Startup Settings and Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
6-5 Diagnostic Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
6-6 Peripheral Servicing Priority Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
6-7 Other Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
SECTION 7
Program Transfer, Trial Operation, and Debugging . . . . . 245
7-1 Program Transfer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
7-2 Trial Operation and Debugging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Appendices
A PC Comparison Charts: CJ-series, CS-series, C200HG/HE/HX,
CQM1H, CVM1, and CV-series PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
B Changes from Previous Host Link Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283

ix
$ERXWWKLV0DQXDO
This manual describes the programming of the CS1G/H-CPU##-EV1 and CJ1G-CPU## CPU Units
for CS/CJ-series Programmable Controllers (PCs) and includes the sections described on the follow-
ing page.
Please read this manual and all related manuals listed in the following table and be sure you under-
stand information provided before attempting to install or use CS1G/H-CPU##-EV1 or CJ1G-CPU##
CPU Units in a PC System.
Name Cat. No. Contents
SYSMAC CS/CJ Series
CS1G/H-CPU##-EV1
CJ1G-CPU##
Programmable Controllers
Programming Manual
W394 This manual describes programming and other
methods to use the functions of the CS/CJ-
series PCs. (This manual)
SYSMAC CJ Series
CJ1G-CPU##
Programmable Controllers
Operation Manual
W393 Provides an outlines of and describes the
design, installation, maintenance, and other
basic operations for the CJ-series PCs.
SYSMAC CS/CJ-series
CS1G/H-CPU##-EV1
CJ1G-CPU##
Programmable Controllers
Programming Manual
W340 Describes the ladder diagram programming
instructions supported by CS/CJ-series PCs.
SYSMAC CS/CJ-series
CQM1H-PRO01-E, C200H-PRO27-E,
CQM1-PRO01-E
Programming Consoles
Operation Manual
W341 Provides information on how to program and
operate CS/CJ-series PCs using a Program-
ming Console.
SYSMAC CS/CJ-series
CS1G/H-CPU##-EV1, CJ1G-CPU##,
CS1W-SCB21/41, CS1W-SCU21,
CJ1W-SCU41
Communications Commands
Reference Manual
W342 Describes the C-series (Host Link) and FINS
communications commands used with CS/CJ-
series PCs.
SYSMAC WS02-CXP##-E
CX-Programmer
User Manual
W361 Provide information on how to use the CX-Pro-
grammer, a programming device that supports
the CS/CJ-series PCs, and the CX-Net con-
tained within CX-Programmer.
SYSMAC WS02-CXP##-E
CX-Server
User Manual
W362
SYSMAC CS/CJ-series
CS1W-SCB21/41, CS1W-SCU21,
CJ1W-SCU41
Serial Communications Boards and
Serial Communications Units
Operation Manual
W336 Describes the use of Serial Communications
Unit and Boards to perform serial communica-
tions with external devices, including the usage
of standard system protocols for OMRON prod-
ucts.
SYSMAC WS02-PSTC1-E
CX-Protocol
Operation Manual
W344 Describes the use of the CX-Protocol to create
protocol macros as communications sequences
to communicate with external devices.
SYSMAC CS/CJ-series
CJ1W-ETN01/ENT11, CJ1W-ETN11
Ethernet Unit
Operation Manual
W343 Describes the installation and operation of
CJ1W-ETN01, CJ1W-ENT11, and CJ1W-
ETN11 Ethernet Units.

x
About this Manual, Continued
This manual contains the following sections.
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 describes the operation of tasks.
Section 5 describes the functions used to manipulate file memory.
Section 6 provides details on advanced functions: Cycle time/high-speed processing, index registers,
serial communications, startup and maintenance, diagnostic and debugging, Programming Devices,
and CJ 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.
:$51,1* 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.

xi
PRECAUTIONS
This section provides general precautions for using the CS/CJ-series Programmable Controllers (PCs) 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 PC system.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv
6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
6-1 Applicable Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
6-2 Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
6-3 Conformance to EC Directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
6-4 Relay Output Noise Reduction Methods . . . . . . . . . . . . . . . . . . . . . xix

xii
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 specifica-
tions 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, amuse-
ment machines, safety equipment, and other systems, machines, and equip-
ment 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 man-
ual close at hand for reference during operation.
:$51,1* It is extremely important that a PC and all PC 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 PC System to the above-mentioned applica-
tions.
3 Safety Precautions
:$51,1* 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 unex-
pected operation of the loads connected to the Unit. Any of the following oper-
ation 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 PC on a
network.
:$51,1* Do not attempt to take any Unit apart while the power is being supplied. Doing
so may result in electric shock.