Omron CP1H-CPU - 05-2006 User manual

OPERATION MANUAL
CP1H CPU Unit
SYSMAC CP Series
CP1H-X40D@@-@@
CP1H-XA40D@@-@@
CP1H-Y20DT-D
Cat. No. W450-E1-02

CP1H-X40D@-@
CP1H-XA40D@-@
CP1H-Y20DT-D
CP1H CPU Unit
Operation Manual
Revised May 2006

iv

v
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 dam-
age 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 CX-Pro-
grammer 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 opera-
tion of the product.
1,2,3... 1. Indicates lists of one sort or another, such as procedures, checklists, etc.
OMRON, 2005
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, o
r
by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission o
f
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
Unit Versions of CP-series CPU Units
Unit Versions A “unit version” has been introduced to manage CPU Units in the CP Series
according to differences in functionality accompanying Unit upgrades.
Notation of Unit Versions
on Products 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.
Confirming Unit Versions
with Support Software CX-Programmer version 6.1 or higher can be used to confirm the unit version
using one of the following two methods. (See note.)
•Using the PLC Information
• Using the Unit Manufacturing Information
Note CX-Programmer version 6.1 or lower cannot be used to confirm unit versions
for CP-series CPU Units.
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.
Lot No.
CP1H-XA40CDR-A
CPU UNIT
Lot No. 28705 0000 Ver.1.0
OMRON Corporation MADE IN JAPAN
Product nameplate
CP-series CPU Unit
Unit version (Example for Unit version 1.0)

vii
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 informa-
tion - CPU Unit.
The following Unit Manufacturing information Dialog Box will be displayed.
Unit version

viii
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 differenti-
ate between CPU Units of different unit versions.
Unit version
Ver.
1.0
Ver.
1.0
Ver.
Ver.
TheseLabelscanbe used
tomanagedifferences
intheavailable
functionsamongtheUnits.
Placetheappropriate label
onthefrontoftheUnitto
showwhatUnit
versionisactuallybeing
used.

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TABLE OF CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi
1 Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
2 General Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv
5 Application Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xxv
6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxviii
SECTION 1
Features and System Configuration . . . . . . . . . . . . . . . . . . . 1
1-1 Features and Main Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1-3 Connecting Programming Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
1-4 Function Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
1-5 Function Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
SECTION 2
Nomenclature and Specifications . . . . . . . . . . . . . . . . . . . . . 41
2-1 Part Names and Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
2-2 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2-3 CP1H CPU Unit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
2-4 CPU Unit Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
2-5 CPU Unit Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
2-6 Power OFF Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
2-7 Computing the Cycle Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
SECTION 3
Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
3-1 Fail-safe Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
3-2 Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
3-3 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
3-4 Wiring CP1H CPU Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
3-5 Wiring Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
3-6 CPM1A Expansion I/O Unit Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

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TABLE OF CONTENTS
SECTION 4
I/O Memory Allocation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
4-1 Overview of I/O Memory Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
4-2 I/O Area and I/O Allocations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148
4-3 Built-in Analog I/O Area (XA CPU Units Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
4-4 Data Link Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
4-5 CPU Bus Unit Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
4-6 Special I/O Unit Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
4-7 Serial PLC Link Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
4-8 DeviceNet Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
4-9 Internal I/O Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
4-10 Holding Area (H). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
4-11 Auxiliary Area (A). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
4-12 TR (Temporary Relay) Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
4-13 Timers and Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
4-14 Data Memory Area (D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
4-15 Index Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
4-16 Data Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
4-17 Task Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
4-18 Condition Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
4-19 Clock Pulses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
SECTION 5
Basic CP1H Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
5-1 Interrupt Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
5-2 High-speed Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
5-3 Pulse Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
5-4 Quick-response Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
5-5 Analog I/O (XA CPU Units). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
SECTION 6
Advanced Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
6-1 Serial Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
6-2 Analog Adjuster and External Analog Setting Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
6-3 7-Segment LED Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .355
6-4 Battery-free Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
6-5 Memory Cassette Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359
6-6 Program Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
6-7 Failure Diagnosis Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .374
6-8 Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 378

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TABLE OF CONTENTS
SECTION 7
Using CPM1A Expansion Units and Expansion I/O Units. 381
7-1 Connecting CPM1A Expansion Units and Expansion I/O Units . . . . . . . . . . . . . . . . . . . . . 382
7-2 Analog Input Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383
7-3 Analog Output Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392
7-4 Analog I/O Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400
7-5 Temperature Sensor Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .423
7-6 CompoBus/S I/O Link Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 438
7-7 DeviceNet I/O Link Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .444
SECTION 8
Program Transfer, Trial Operation, and Debugging . . . . . 451
8-1 Program Transfer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452
8-2 Trial Operation and Debugging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 452
SECTION 9
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 459
9-1 Error Classification and Confirmation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 460
9-2 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465
9-3 Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 477
9-4 Troubleshooting Unit Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .478
SECTION 10
Inspection and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 481
10-1 Inspections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482
10-2 Replacing User-serviceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484
Appendices
A Standard Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489
B Dimensions Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .497
C Auxiliary Area Allocations by Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 505
D Auxiliary Area Allocations by Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 525
E Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 571
F Connections to Serial Communications Option Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 573
G PLC Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 599
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 629
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 635

xii
TABLE OF CONTENTS

xiii
About this Manual:
This manual describes installation and operation of the CP-series Programmable Controllers (PLCs)
and includes the sections described below. The CP Series provides advanced package-type PLCs
based on OMRON’s advanced control technologies and vast experience in automated control.
Please read this manual carefully and be sure you understand the information provided before
attempting to install or operate a CP-series PLC. Be sure to read the precautions provided in the fol-
lowing section.
Definition of the CP Series
The CP Series is centered around the CP1H CPU Units and is designed with the same basic architec-
ture as the CS and CJ Series. The Special I/O Units and CPU Bus Units of the CJ Series can thus be
used. CJ-series Basic I/O Units, however, cannot be used. Always use CPM1A Expansion Units and
CPM1A Expansion I/O Units when expanding I/O capacity.
I/O words are allocated in the same way as the CPM1A/CPM2A PLCs, i.e., using fixed areas for inputs
and outputs.
CS/CJ/CP Series
CS1H-CPU@@H
CS1G-CPU@@H
CS1-H CPU Units
CS-series Power Supply Units
Note: Products specifically for the CS1D
Series are required to use CS1D
CPU Units.
CS-series Basic I/O Units
CS-series CPU Bus Units
CS-series Special I/O Units
CS1 CPU Units
CS Series
CS1H-CPU@@ (-V1)
CS1G-CPU@@ (-V1)
CJ1H-CPU@@H
CJ1G-CPU@@H
CJ1G -CPU@@P
(Loop CPU Unit)
CJ1-H CPU Units
CJ1 CPU Unit
CJ Series
CJ1G-CPU@@
CJ1M CPU Unit
CJ1M-CPU@@
CS1D CPU Units
CS1D CPU Units for
Duplex-CPU System
CS1D-CPU@@H
CS1D CPU Units for
Single-CPU System
CS1D-CPU S
CS1D Process CPU Units
CS1D-CPU@@P
CP1H-X@@@@-@
CP1H-XA@@@@-@
CP1H-Y@@@@-@
CP1H CPU Units
CJ-series CPU Bus Units
CJ-series Special I/O Units
CP Series
CPM1A Expansion Units
CPM1A Expansion I/O Units
@@
CJ-series Basic I/O Units
CJ-series Special I/O Units
CJ-series CPU Bus Units
CJ-series Power Supply Units

xiv
Precautions provides general precautions for using the Programmable Controller and related devices.
Section 1 introduces the features of the CP1H and describes its configuration. It also describes the
Units that are available and connection methods for Programming Devices and other peripheral
devices.
Section 2 describes the names and functions of CP1H parts and provides CP1H specifications.
Section 3 describes how to install and wire the CP1H.
Section 4 describes the structure and functions of the I/O Memory Areas and Parameter Areas.
Section 5 describes the CP1H’s interrupt and high-speed counter functions.
Section 6 describes all of the advanced functions of the CP1H that can be used to achieve specific
application needs.
Section 7 describes how to use CPM1A Expansion Units and Expansion I/O Units
Section 8 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.
Section 9 provides information on hardware and software errors that occur during CP1H operation
Section 10 provides inspection and maintenance information.
The Appendices provide product lists, dimensions, tables of Auxiliary Area allocations, and a memory
map.

xv
Related Manuals
The following manuals are used for the CP-series CPU Units. Refer to these manuals as required.
Cat. No. Model numbers Manual name Description
W450 CP1H-X40D@-@
CP1H-XA40D@-@
CP1H-Y20DT-D
SYSMAC CP Series
CP1H CPU Unit
Operation Manual
Provides the following information on the CP Series:
•Overview, design, installation, maintenance, and
other basic specifications
•Features
• System configuration
•Mounting and wiring
•I/O memory allocation
• Troubleshooting
Use this manual together with the CP1H Program-
mable Controllers Programming Manual (W451).
W451 CP1H-X40D@-@
CP1H-XA40D@-@
CP1H-Y20DT-D
SYSMAC CP Series
CP1H CPU Unit Pro-
gramming Manual
Provides the following information on the CP Series:
•Programming instructions
• Programming methods
•Tasks
• File memory
•Functions
Use this manual together with the CP1H Program-
mable Controllers Operation Manual (W450).
W342 CS1G/H-CPU@@H
CS1G/H-CPU@@-V1
CS1D-CPU@@H
CS1D-CPU@@S
CS1W-SCU21
CS1W-SCB21-V1/41-V1
CJ1G/H-CPU@@H
CJ1G-CPU@@P
CP1H-CPU@@
CJ1G-CPU@@
CJ1W-SCU21-V1/41-V1
SYSMAC CS/CJ-
series Communica-
tions Commands Ref-
erence Manual
Describes commands addressed to CS-series and
CJ-series CPU Units, including C-mode commands
and FINS commands.
Note This manual describes on commands
address to CPU Units regardless of the com-
munications path. (CPU Unit serial ports,
Serial Communications Unit/Board ports, and
Communications Unit ports can be used.)
Refer to the relevant operation manuals for
information on commands addresses to Spe-
cial I/O Units and CPU Bus Units.
W446 WS02-CXPC1-E-V70 SYSMAC CX-Pro-
grammer
Ver. 7.0 Operation
Manual
Provides information on installing and operating the
CX-Programmer for all functions except for function
blocks.
W447 WS02-CXPC1-E-V70 SYSMAC CX-Pro-
grammer Ver. 7.0
Operation Manual
Function Blocks
Provides specifications and operating procedures
for function blocks. Function blocks can be used
with CX-Programmer Ver. 6.1 or higher and either a
CS1-H/CJ1-H CPU Unit with a unit version of 3.0 or
a CP1H CPU Unit. Refer to W446 for operating pro-
cedures for functions other than function blocks.
W444 CXONE-AL@@C-E CX-One FA Inte-
grated Tool Package
Setup Manual
Provides an overview of the CX-One FA Integrated
Tool and installation procedures.
W445 CXONE-AL@@C-E CX-Integrator Opera-
tion Manual Describes CX-Integrator operating procedures and provides information on network configuration (data
links, routing tables, Communications Units setup,
etc.
W344 WS02-PSTC1-E CX-Protocol Opera-
tion Manual Provides operating procedures for creating protocol macros (i.e., communications sequences) with the
CX-Protocol and other information on protocol mac-
ros.
The CX-Protocol is required to create protocol mac-
ros for user-specific serial communications or to
customize the standard system protocols.

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xvii
Read and Understand this Manual
Please read and understand this manual before using the product. Please consult your OMRON
representative if you have any questions or comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a
period of one year (or other period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-
INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE
PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR
INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which
liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS
REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS
WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO
CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

xviii
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the
combination of products in the customer's application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying
ratings and limitations of use that apply to the products. This information by itself is not sufficient for a
complete determination of the suitability of the products in combination with the end product, machine,
system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not
intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses
listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or
uses not described in this manual.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical
equipment, amusement machines, vehicles, safety equipment, and installations subject to separate
industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR
PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED
FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any
consequence thereof.

xix
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other
reasons.
It is our practice to change model numbers when published ratings or features are changed, or when
significant construction changes are made. However, some specifications of the products may be changed
without any notice. When in doubt, special model numbers may be assigned to fix or establish key
specifications for your application on your request. Please consult with your OMRON representative at any
time to confirm actual specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when
tolerances are shown.
PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in determining suitability and does
not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must
correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and
Limitations of Liability.
ERRORS AND OMISSIONS
The information in this manual has been carefully checked and is believed to be accurate; however, no
responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

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PRECAUTIONS
This section provides general precautions for using the CP-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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxii
4 Operating Environment Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiv
5 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxv
6 Conformance to EC Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxviii
6-1 Applicable Directives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxviii
6-2 Concepts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxviii
6-3 Conformance to EC Directives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxviii
6-4 Relay Output Noise Reduction Methods . . . . . . . . . . . . . . . . . . . . . xxix
6-5 Conditions for Meeting EMC Directives
when Using CPM1A Relay Expansion I/O Units. . . . . . . . . . . . . . . xxx