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152
Overview of the Protocol Macro Functions
Section 5-1
Handling
Communications
Problems for Standard
System Protocols
The CS/CJ-series PLCs provide standard system protocols to enable commu-
nications with OMRON components without having to create communications
sequences. The sequences in the standard system protocols can be executed
merely by setting operands for the PMCR(260) instruction.
Processing for communications line problems during communications for the
standard system protocols are set to normal settings, as shown in the follow-
ing table. If these settings are not suitable to the application or if improve-
ments are desired, use the CX-Protocol to modify the following settings in the
required sequences. For details on the use of the CX-Protocol, refer to the
CX-Protocol Operation Manual
(W344). Refer to the appendices for the set-
tings in the standard system protocols.
D32001
D32011
m + 1
m + 11
Bits 00 to 03: Baud rate
Set to match the baud rate of the external
device.
D32008
D32018
m + 8
m + 18
Bit 15: Transmission method
Set to 0 Hex to specify half-duplex.
D32009
D32019
m + 9
m + 19
Bits 00 to 15: Max. No. of send/
receive bytes
Set to 03E8 Hex to specify 1,000 bytes.
Board
(CS Series only)
Unit
(CS/CJ Series)
Contents
Setting for a standard system protocol
Port 1
Port 2
Port 1
Port 2
Level
Item
Possible changes in settings
Sequence
parameters
Link words
No reason to change.
Transmission control
parameters
Response notifica-
tion method
Reception wait time Tr The monitoring times are set to 3 seconds
for most sequences. The settings are differ-
ent for send-only and receive-only
sequences, as well as for sequences that
require time for responses.
Reception finished
wait time Tfr
Send finished wait
time Tfs
Step parame-
ters
Repeat counter
No reason to change.
Command
Retry count
The retry count is general set to 3 retries (4
tries total) for sequences that use the
SEND&RECV command. Different settings
are used for sequences that have other
commands.
Send wait time
No reason to change.
Send message
Receive message
Response write
enable
Next process
Error process
Summary of Contents for SYSMAC CJ1W-SCU21-V1
Page 3: ...iv...
Page 5: ...vi...
Page 9: ...x...
Page 15: ...xvi...
Page 89: ...60 Basic Operating Procedure Section 1 9...
Page 151: ...122 RS 232C and RS 422A 485 Wiring Section 3 4...
Page 173: ...144 Host Link Function for Replacing Existing PLCs Section 4 6...
Page 223: ...194 Enhanced Protocol Macro Functions Section 5 6...
Page 277: ...248 Communications Frames Section 6 8...
Page 291: ...262 Basic Operating Procedure in No protocol Mode Section 7 4...
Page 301: ...272 Auxiliary Area and CIO Area Allocations Section 8 3...
Page 391: ...362 Introduction Appendix A...
Page 421: ...392 CompoWay F Master Protocol Appendix B...
Page 513: ...484 E5 K Digital Controller Read Protocol Appendix F...
Page 571: ...542 E5ZE Temperature Controller Write Protocol Appendix I...
Page 587: ...558 E5 J Temperature Controller Protocol Appendix J...
Page 627: ...598 ES100 Digital Controller Protocol Appendix K...
Page 661: ...632 V500 V520 Bar Code Reader Protocol Appendix M...
Page 697: ...668 3Z4L Laser Micrometer Protocol Appendix N...
Page 717: ...688 Visual Inspection System Protocol Appendix O...
Page 755: ...726 V600 V620 ID Controller Protocol Appendix P...
Page 763: ...734 Hayes Modem AT Command Protocol Appendix Q...
Page 767: ...738 Changing Communications Port Settings Using STUP 237 Appendix R...
Page 781: ...752 Revision History...