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190
Selecting Communications Instructions
Section 6-2
6-2-1
Message Service Operations
Note
1.
CMND cannot be used with C200HX/HG/HE PLCs.
2.
If a computer is receiving commands, a program is required at the comput-
er for sending back responses.
Instruc-
tion
Source node
Destination node
Communica-
tions con-
tents
Data
length
Broad-
casting
Network con-
nections
C200HX/
HG/HE
CQM1H CS/CJ,
CVM1,
or CV
C200HX
/HG/HE
or
CQM1H
CS/CJ,
CVM1,
or CV
Com-
puter
SEND
and
RECV
Yes
Yes
Yes
Yes
Yes
Yes
(See
note
2.)
Read to and
write from all
I/O memory
areas.
990
words
max.
(1,980
bytes)
SEND
only (no
response)
Yes (up to
three levels
including local
network), via
CS/CJ-series,
CVM1, or
CV-series
PLCs.
CMND
(See
note 1.)
No
Yes
Yes
Yes
Yes
Yes
(See
note
2.)
Data
read/write:
Read to and
write from all
I/O memory
areas.
Read PLC
model.
Read status
data.
Read time
data.
Read and
write File
Memory data.
Read PLC
mode.
PLC Control:
Change PLC
mode.
Forced set/
reset
Clear PLC
errors.
2,012
bytes
max.
Yes (no
response)
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 ...