Omron WS02-CXPC1-V8 - V8.1 REV 02-2009 User manual

Operation Manual
SFC Programming
SYSMAC
WS02-CXPC1-V8
CX-Programmer Ver. 8.1
Cat. No. W469-E1-04

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CX-Programmer Ver. 8.1
WS02-CXPC1-V8
Operation Manual
SFC Programming
Revised February 2009

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TABLE OF CONTENTS
About this Manual: ...................................................................................................................................................v
Read and Understand this Manual ..........................................................................................................................vi
Warranty and Limitations of Liability .....................................................................................................................vi
Application Considerations ....................................................................................................................................vii
Disclaimers............................................................................................................................................................viii
SECTION 1 Overview......................................................................... 1
1-1 SFC Overview..................................................................................................................................................2
1-2 CX-Programmer Specifications........................................................................................................................6
1-3 Window Components.......................................................................................................................................8
1-4 SFC Programming Example...........................................................................................................................27
1-5 Precautions When Creating SFC Programs....................................................................................................33
SECTION 2 SFC Fundamentals....................................................... 41
2-1 SFC Basic Operation......................................................................................................................................42
2-2 Basic SFC Execution Cycle............................................................................................................................43
2-3 Elements of SFC.............................................................................................................................................44
SECTION 3 Offline Operations ....................................................... 63
3-1 Creating an SFC Program...............................................................................................................................64
3-2 Editing the SFC Chart ....................................................................................................................................67
3-3 Searching and Replacing within an SFC Chart ..............................................................................................88
3-4 Offline Program Check...................................................................................................................................90
3-5 Miscellaneous.................................................................................................................................................91
SECTION 4 Online Operations........................................................ 93
4-1 Connecting the PLC .......................................................................................................................................94
4-2 Transferring Programs from Computer to PLC..............................................................................................95
4-3 Transferring Programs from PLC to Computer..............................................................................................96
4-4 Comparing Programs......................................................................................................................................97
4-5 Monitoring......................................................................................................................................................98
SECTION 5 Debug Operations ...................................................... 103
5-1 Online Editing ..............................................................................................................................................104
5-2 Force Setting/Force-Resetting......................................................................................................................113
5-3 Set Step Timer Value....................................................................................................................................115
5-4 Work Online Simulator ................................................................................................................................116

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Appendix A.........................................................................................117
Specifications for Step Control Instructions......................................................................................................... 117
Appendix B .........................................................................................123
SFC Task Control Instruction Specifications ....................................................................................................... 123
Appendix C.........................................................................................128
SFC Program Size and Execution Time ............................................................................................................... 128
Index....................................................................................................131
Revision History .................................................................................135

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About this Manual:
SFC programming functions have been added to the CX-Programmer. This manual describes the
specifications of the SFC language, and the CX-Programmer operations related to the SFC
programming functions. For operations not related to SFC programming, refer to the
CX-Programmer Operation Manual (Cat. No. W446).
For details on operations related to function blocks and structured text, refer to the CX-Programmer
Operation Manual Function Blocks/Structured Texts (Cat. No. W447).
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.
Caution 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,
the CJ2 Units with unit version 1.0 or later, or the CS1-H, CJ1-H, or CJ1M CPU Units
with unit version 4.0 or later. Be sure to read the precautions provided in the following
section.

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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
(1) The warranty period for the Software is one year from either the date of purchase or the date
on which the Software is delivered to the specified location.
(2) If the User discovers a defect in the Software (i.e., substantial non-conformity with the
manual), and returns it to OMRON within the above warranty period, OMRON will replace the
Software without charge by offering media or downloading services from the Internet. And if
the User discovers a defect in the media which is attributable to OMRON and returns the
Software to OMRON within the above warranty period, OMRON will replace the defective media
without charge. If OMRON is unable to replace the defective media or correct the Software, the
liability of OMRON and the User’s remedy shall be limited to a refund of the license fee paid to
OMRON for the Software.
LIMITATIONS OF LIABILITY
(1) THE ABOVE WARRANTY SHALL CONSTITUTE THE USER’S SOLE AND EXCLUSIVE
REMEDIES AGAINST OMRON AND THERE ARE NO OTHER WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING BUT NOT LIMITED TO, WARRANTY OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE. IN NO EVENT WILL OMRON BE LIABLE FOR ANY LOST
PROFITS OR OTHER INDIRECT, INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF USE OF THE SOFTWARE.
(2) OMRON SHALL ASSUME NO LIABILITY FOR DEFECTS IN THE SOFTWARE BASED ON
MODIFICATION OR ALTERATION OF THE SOFTWARE BY THE USER OR ANY THIRD PARTY.
(3) OMRON SHALL ASSUME NO LIABILITY FOR SOFTWARE DEVELOPED BY THE USER OR ANY
THIRD PARTY BASED ON THE SOFTWARE OR ANY CONSEQUENCE THEREOF.

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Application Considerations
SUITABILITY FOR USE
THE USER SHALL NOT USE THE SOFTWARE FOR A PURPOSE THAT IS NOT DESCRIBED IN THE
ATTACHED USER MANUAL.

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Disclaimers
CHANGE IN SPECIFICATIONS
The software specifications and accessories may be changed at any time based on improvements
or for other reasons.
EXTENT OF SERVICE
The license fee of the Software does not include service costs, such as dispatching technical
staff.
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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Manuals Related to the CX-Programmer
Name Cat. No. Contents
SYSMAC WS02-CXPC1-V8
CX-Programmer Operation Manual: SFC
W469
(this
manual)
Explains how to use the SFC programming functions.
For explanations of other shared CX-Programmer
functions, refer to the CX-Programmer Operation
Manual (W446).
SYSMAC WS02-CXPC1-V8
CX-Programmer Ver. 8.1 Operation
Manual
Function Blocks/Structured Texts
W447
Describes the function block functions and structured
text programming functions that can be used with the
CX-Programmer version 8.1. For details onother
CX-Programmer functions, refer to the
CX-Programmer Ver. 8.1 Operation Manual (Cat. No.
W446).
SYSMAC WS02-CXPC1-V8
CX-Programmer Ver. 8.1 Operation
Manual
W446 Describes the general CX-Programmer version 8.1
operations that are not specifically related to SFC
programming, function block functions, and structured
text programming functions.
CX-Integrator Operation Manual
CXONE-AL@@C-V3
CXONE-AL@@D-V3
W464 Describes operating procedures for the CX-Integrator
Network Configuration Tool for CS-, CJ-, CP-, and
NSJ-series Controllers.
CX-One Setup Manual
CXONE-AL@@C-V3
CXONE-AL@@D-V3
W463 Installation and overview of CX-One FA Integrated
Tool Package.

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Manuals Related to the CJ2, CS1-H, CJ1-H, CJ1M PLCs
Name Cat. No. Contents
SYSMAC CJ Series
CJ2H-CPU6@-EIP, CJ2H-CPU6@
Programmable Controllers
Hardware User’s Manual
W472 Provides an outline of and describes the design,
installation, maintenance, and other basic operations for
the CJ-series CJ2 CPU Units.
The following information is included:
Overview and features
System configuration
Installation and wiring
Troubleshooting
Use this manual together with the W473.
SYSMAC CJ Series
CJ2H-CPU6@-EIP, CJ2H-CPU6@
Programmable Controllers
Software User’s Manual
W473 Describes programming and other methods to use the
functions of the CJ2 CPU Units.
The following information is included:
CPU Unit operation
Internal memory areas
Programming
Tasks
CPU Unit built-in functions
Use this manual together with the W472.
SYSMAC CS/CJ Series
CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H,
CS1D-CPU@@H, CS1D-CPU@@S,
CJ2H-CPU6@-EIP, CJ2H-CPU6@,
CJ1H-CPU@@H-R
CJ1G-CPU@@, CJ1G/H-CPU@@H,
CJ1G-CPU@@P, CJ1M-CPU@@
SYSMAC One NSJ Series
NSJ@-@@@@ (B)-G5D
NSJ@-@@@@ (B)-M3D
Programmable Controllers
Instructions Reference Manual
W474 Describes the ladder diagram programming instructions
supported by CS/CJ-series or NSJ-series PLCs.
When programming, use this manual together with the
Operation Manual or Hardware User’s Manual (CS1:
W339, CJ1: W393,or CJ2:W472) and Programming
Manual or Software User’s Manual (CS1/CJ1:W394 or
CJ2:W473).
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, CJ1M-CPU@@
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.
SYSMAC CS/CJ Series
CS1G/H-CPU@@-EV1, CS1G/H-CPU@@H,
CJ1G-CPU@@, CJ1G/H-CPU@@H,
CJ1G-CPU@@P, CJ1M-CPU@@
Programmable Controllers
Programming Manual
W394 Describes programming and other methods to use the
functions 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.