Omron CX-PROGRAMMER 5.0-FUNCTION BLOCK OPERATION User manual

OPERATION MANUAL
Function Blocks
CX-Programmer Ver.5.0
SYSMAC
WS02-CXPC1-E-V50
CS1-H, CJ1-H, CJ1M CPU Units
Cat.No. W438-E1-01

CX-Programmer
Ver. 5.0
WS02-CXPC1-E-V50
CS1-H, CJ1-H, CJ1M CPU Units
Operation Manual
Function Blocks
Produced July 2004

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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, 2004
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.

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TABLE OF CONTENTS
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
2 General Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
3 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
4 Application Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xiii
SECTION 1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1 Introducing the Function Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1-2 Function Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-3 Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1-4 Converting Function Block Definitions to Library Files. . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1-5 Usage Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SECTION 2
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2-1 Function Block Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2-2 Instance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2-3 Restrictions on Function Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
2-4 Function Block Applications Guidelines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
2-5 Precautions for Instructions with Operands Specifying the First or Last of Multiple Words 49
2-6 Instruction Support and Operand Restrictions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
2-7 CPU Unit Function Block Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
2-8 Number of Function Block Program Steps and Instance Execution Time . . . . . . . . . . . . . . 108
SECTION 3
Creating Function Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
3-1 Procedural Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
3-2 Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Appendices
A Data Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
B Structured Text (ST Language) Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
C External Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

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TABLE OF CONTENTS

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About this Manual:
This manual describes the function blocks and related functionality of the CX-Programmer Ver. 5.0
used together with CS1-H, CJ1-H, and CJ1M CPU Units with unit version 3.0 or later, and includes the
sections described on the next page. The CX-Programmer Ver. 5.0 is software that enables the per-
sonal computer to be used as a function block programming device, and can be used only for SYS-
MAC CS-series and CJ-series CPU Units that support function blocks.
The CX-Programmer Ver. 5.0 function block functions have been enhanced. This manual describes
only CX-Programmer Ver. 5.0 operations that are related to functions blocks. For operations not related
to function blocks, refer to the CX-Programmer Operation Manual (enclosed, Cat. No. W437). This
manual also provides only information related to function blocks for the CS1-H, CJ1-H, and CJ1M CPU
Units. For other information, refer to the CS/CJ-series manuals.
Please read this manual and related manuals carefully and be sure you understand the information
provided before attempting to install or operate the CX-Programmer Ver. 5.0 or the CS1-H, CJ1-H, or
CJ1M CPU Units. Be sure to read the precautions provided in the following section.
Manuals Related to the CX-Programmer Ver. 5.0
Manuals Related to the CS1-H, CJ1-H, CJ1M CPU Units
Name Cat. No. Contents
SYSMAC WS02-CXPC1-E-V50
CX-Programmer Ver. 5.0 Operation Manual
Function Blocks
(CS1G-CPU@@H, CS1H-CPU@@H,
CJ1G-CPU@@H, CJ1H-CPU@@H,
CJ1M-CPU@@ CPU Units)
W438 Describes the functionality unique to the CX-Programmer Ver.
5.0 and CS/CJ-series CPU Units with unit version 3.0 or later
based on function blocks. Functionality that is the same as
that of the CX-Programmer is described in W437 (enclosed).
SYSMAC WS02-CXPC1-E-V50
CX-Programmer Operation Manual
W437 Provides information on how to use the CX-Programmer for
all functionality except for function blocks.
Name Cat. No. Contents
SYSMAC CS Series
CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H
Programmable Controllers
Operation Manual
W339 Provides an outline of and describes the design, installation,
maintenance, and other basic operations for the CS-series
PLCs.
The following information is included:
An overview and features
The system configuration
Installation and wiring
I/O memory allocation
Troubleshooting
Use this manual together with the W394.
SYSMAC CJ Series
CJ1G-CPU@@, CJ1G/H-CPU@@H, CJ1G-
CPU@@P, C J 1 M - C P U @@
Programmable Controllers
Operation Manual
W393 Provides an outline of and describes the design, installation,
maintenance, and other basic operations for the CJ-series
PLCs.
The following information is included:
An overview and features
The system configuration
Installation and wiring
I/O memory allocation
Troubleshooting
Use this manual together with the W394.

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Overview of Contents
Precautions provides general precautions for using the CX-Programmer Ver. 5.0.
Section 1 introduces the function block functionality of the CX-Programmer and explains the features
that are not contained in the non-function block version of CX-Programmer.
Section 2 provides specifications for reference when using function blocks, including specifications on
function blocks, instances, and compatible PLCs, as well as usage precautions and guidelines.
Section 3 describes the procedures for creating function blocks on the CX-Programmer.
The Appendices provide information on data types, structure text specifications, and external vari-
ables.
SYSMAC CS/CJ Series
CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H,
CJ1G-CPU@@, CJ1G/H-CPU@@H, CJ1G-
CPU@@P, C J 1 M - C P U @@
Programmable Controllers
Programming Manual
W394 Describes programming and other methods to use the func-
tions of the CS/CJ-series PLCs.
The following information is included:
Programming
Tasks
File memory
Other functions
Use this manual together with the W339 or W393.
SYSMAC CS/CJ Series
CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H,
CJ1G-CPU@@, CJ1G/H-CPU@@H, CJ1G-
CPU@@P, C J 1 M - C P U @@
Programmable Controllers
Instructions Reference Manual
W340 Describes the ladder diagram programming instructions sup-
ported by CS/CJ-series PLCs.
When programming, use this manual together with the Oper-
ation Manual (CS1: W339 or CJ1: W393) and Programming
Manual (W394).
SYSMAC CS/CJ Series
CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H,
CS1W-SCB21-V1/41-V1, CS1W-SCU21/41,
CJ1G-CPU@@, CJ1G/H-CPU@@H, CJ1G-
CPU@@P, C J 1 M - C P U @@, CJ1W-SCU21-V1/
41-V1
Communications Commands
Reference Manual
W342 Describes the communications commands that can be
addressed to CS/CJ-series CPU Units.
The following information is included:
C-series (Host Link) commands
FINS commands
Note: This manual describes commands that can be sent to
the CPU Unit without regard for the communications path,
which can be through a serial communications port on the
CPU Unit, a communications port on a Serial Communica-
tions Unit/Board, or a port on any other Communications
Unit.
Name Cat. No. Contents
!WARNING Failure to read and understand the information provided in this manual may result in per-
sonal injury or death, damage to the product, or product failure. Please read each section
in its entirety and be sure you understand the information provided in the section and
related sections before attempting any of the procedures or operations given.

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PRECAUTIONS
This section provides general precautions for using the CX-Programmer Ver. 5.0 and the Programmable Logic Controller.
The information contained in this section is important for the safe and reliable application of the CX-Programmer
Ver. 5.0 and Programmable Controller. You must read this section and understand the information contained before
attempting to set up or operate the CX-Programmer Ver. 5.0 and Programmable Controller.
1 Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
2 General Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xii
4 Application Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiii