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352
Memory Areas
Appendix B
Words N+22 through N+25 register nodes that will participate in the data links. The numbers shown in the table
are the node addresses. The bit status for each node address indicates whether the node is to participate in
the data links.
Participate: ON
Not participate: OFF
C200HX/HG/HE PLCs
SR Area
Communications Instruction Response Codes: SR 237 (See page 194.)
Polling Node Address, Startup Node Address: SR 238, SR 242 (See page 297.)
Data Link Status: SR 239 to SR 241, SR 243 to SR 245 (See pages 158, 297.)
When the first data link status word for manually set data link tables or for automatically set data links is not set
or is set to 0, the data link status of only node addresses 1 to 6 will be given in the following area.
Operating level 0 response code
Operating level 1 response code
Each response code is in 2-digit hexadecimal.
SR 237
Operating level 0
SR 238
Operating level 1
SR 242
Polling node address
Startup node address
Each node address is in 2-digit BCD.
Operating
level 0
SR 239
SR 240
SR 241
Operating
level 1
SR 243
SR 244
SR 245
PLC status
0: Inactive (user program not running)
1: Active (user program running)
Communications error (data link reception)
0: Normal
1: Error
PLC's CPU Unit error
0: Normal
1: Error
Data link participation
0: Not in data link or data link inactive
1: In data link
Offset error
0: Normal
1: Error
Error: Offset exceeds
number of send words.
Insufficient (short) receive area
0: Sufficient
1: Insufficient
Insufficient: Receive
area is smaller than
send area. Excess data
is truncated; other data
is received.
Remaining receive area
0: Not remaining
1: Remaining
Remaining: Receive area
is larger than send area.
Data is received and
remaining words are
cleared.
Node 2
Node 4
Node 6
Node 1
Node 3
Node 5
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 ...