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196
Using the Message Service
Section 6-3
Simultaneous Execution of Communications Instructions
C200HX/HG/HE PLCs
CS/CJ-series, CVM1, and CV-series PLCs
Operating
level #0
Operating
level #1
Instruction 1
Instruction 2
Instruction 3
Instruction 4
Instruction 5
Instruction 6
Instruction 7
Instruction 8
Controller Link Unit
CPU Unit
Port
Controller Link Unit
CPU Unit
Port
Port
Instruction 1
Instruction 2
There is only one communications port per operat-
ing level, so no more than one communications in-
struction can be executed per operating level at
one time. When both operating levels are used, two
instructions can be executed simultaneously.
There are eight communications ports, so eight
communications can be executed simultane-
ously. Only one message is refreshed from the
CPU Unit to the Controller Link Unit and one
from the Controller Link Unit to the CPU Unit
for each CPU Bus Unit service time.
CQM1H-series PLCs
There is only one communications port, so no more
than one communications instruction can be
executed at one time.
Controller Link Unit
CPU Unit
Port
Instruction 1
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 ...