Omron CJ Series User manual

OPERATION MANUAL

Cat. No. W395-E1-01

CJ-series Built-in I/O

CJ1M-CPU22/CPU23

CJ1M CPU Units

CJ-series Built-in I/O

CJ1M-CPU22/CPU23 CPU Units

Operation Manual

Produced July 2002

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.

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

serious injury.

!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 Program-

ming 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 opera-

tion of the product.

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

OMRON, 2002

by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission o

OMRON.

No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is 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.

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

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1-2 Functions Listed by Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

SECTION 2

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2-1 Allocations for Built-in CPU Unit Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2-2 Allocations for Built-in CPU Unit Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2-3 Allocations for Origin Search Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

SECTION 3

I/O Specifications and Wiring . . . . . . . . . . . . . . . . . . . . . . . . 19

3-1 I/O Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3-2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3-3 Wiring Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

SECTION 4

Data Area Allocation and PLC Setup Settings . . . . . . . . . . 51

4-1 Data Area Allocation for Built-in I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

4-2 PLC Setup Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

4-3 Auxiliary Area Data Allocation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

4-4 Flag Operations during Pulse Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

SECTION 5

Built-in I/O Function Descriptions . . . . . . . . . . . . . . . . . . . . 73

5-1 Built-in Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

5-2 Built-in Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

5-3 Origin Search and Origin Return Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

SECTION 6

Programming Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

6-1 Built-in Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

viii

TABLE OF CONTENTS

Appendices

A Combinations of Pulse Control Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145

B Using Pulse Instructions in other CPU Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

C Interrupt Response Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153

Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

About this Manual:

This manual describes the installation and operation of the built-in I/O supported by the CJ1M-CPU22

and CJ1M-CPU23 CPU Units and includes the sections described below.

Please read this manual carefully and be sure you understand the information provided before

attempting to install or operate the built-in I/O Be sure to read the precautions provided in the following

section.

Precautions provides general precautions for using the built-in I/O.

Section 1 describes the features and applications of the functions of the built-in I/O.

Section 2 provides an overview of the functions of built-in I/O.

Section 3 provides I/O specifications and wiring instructions for the built-in I/O.

Section 4 describes the allocation of words and bits for usage with the built-in I/O and PLC Setup set-

tings related to built-in I/O.

Section 5 describes the application of built-in I/O in detail.

Section 6 provides examples of programming built-in I/O

The Appendices provides a table shown which pulse control instructions can be used together, a table

of pulse control instruction support in other PLCs, and instruction execution times.

PRECAUTIONS

This section provides general precautions for using the 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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

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