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7
Overview
Section 1-1
SEND/RECV
The SEND or RECV instruction sends or receives data in an area of a particu-
lar node.
The SEND instruction sends data from an area of the local node and writes to
an area in the designated node.
The RECV instruction requests the designated node to send area data and
writes the data to the local node.
CMND
The CMND instruction issues a command to read or write data of other
nodes, control, or read error logs. With the Controller LInk Unit, OMRON’s
command protocol called “FINS commands” is used.
Note
Since the C200HX/HG/HE PLCs do not support the CMND instructions, arbi-
trary commands cannot be issued.
RAS
RAS performs real-time monitoring of the network status. If an error occurs in
the network, RAS records and displays the time and contents of the error.
Status Area
Data Link Status Area
When the data link function is used, the data link status is reflected in the data
link status area of the PLC.
Network Status Area Other than the Data Link:
The network status such as the state of node participation is reflected in the
status area of the PLC.
Error Log
The error log function records contents (codes) and times of errors that occur
in the network into the RAM or EEPROM, up to the maximum of 64 (see note)
errors.
The recorded errors can be read using the Controller Link Support Software
or the message service function.
Note
The number of error log records depends on the model. For details, refer to
Controller Link Unit
CPU Unit
Status Area
•
Data link status
•
Status other than the data link
CPU Unit
Controller Link Unit
Controller Link Unit
Controller Link Unit
Controller Link Unit
Controller Link Unit
CS-series
CPU Unit
Error log table
C200HX/HG/
HE CPU Unit
CVM1, CV-
series CPU
Unit
CJ-series
CPU Unit
Summary of Contents for C200HW-CLK21
Page 3: ...iv ...
Page 9: ...x ...
Page 12: ...xiii TABLE OF CONTENTS Index 367 Revision History 373 ...
Page 13: ...xiv ...
Page 19: ...xx ...
Page 57: ...32 Application Precautions Section 1 5 Example CX Programmer Response Timeout Setting ...
Page 69: ...44 Message Service Procedure Section 2 2 ...
Page 111: ...86 Constructing Networks with Repeater Units Section 3 4 ...
Page 154: ...129 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Page 261: ...236 Response Codes Section 6 7 ...
Page 297: ...272 Message Delay Times Section 8 4 ...
Page 353: ...328 Handling Precautions Section 9 6 ...
Page 364: ...339 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Page 365: ...340 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Page 369: ...344 Standard Models Appendix A ...
Page 391: ...366 Using the Relay Terminal Block Appendix C ...
Page 397: ...372 Index ...
Page 401: ...376 Revision History ...