Omron C200HW-CLK21 Operation Manual page 323

Status Area and Troubleshooting
Polling Node Address, Startup Node Address: SR 238, SR 242
Data Link Status: SR 239
to SR 241, SR 243 to
SR 245
Operating Operating
level 0 level 1
SR 239 SR 243
Node 2
SR 240 SR 244
Node 4
SR 241 SR 245
Node 6
Operating Level Status: SR 252
300
Operating level 0
SR 238
When the data link status stored in the start word for the manual setting data
link table or automatic setting data link parameters is not set or is set to 0, the
data link status of only node addresses 1 to 6 will be displayed in the following
area.
Node 1
Node 3
Node 5
Operating level 1
Operating level 0
Note Data link status is valid only when the local node is participating in the data
link. Confirm that the local node's data links are active in the operating level
status in SR 252 before referencing the data link status.
Operating level 1
SR 242
Polling node address
Each node address is displayed in 2-digit BCD.
PLC's CPU Unit error
0: Normal
1: Error
Communications error (data link reception)
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
Insufficient (short) receive area
0: Sufficient
1: Insufficient
Remaining receive area
0: Not remaining
1: Remaining
1: Local node data link participating
SEND/RECV Enable Flag
0: Disabled (operating)
1: Enabled (not operating)
SEND/RECV Error Flag
0: Normal completion
1: Error
1: Local node data link participating
SEND/RECV Enable Flag
0: Disabled (operating)
1: Enabled (not operating)
SEND/RECV Error Flag
0: Normal completion
1: Error
Section 9-2
Startup node address
PLC status
0: Inactive (user program not running)
1: Active (user program running)
Error: Offset exceeds
number of send words.
Insufficient: Receive
area is smaller than
send area. Excess data
is truncated; other data
is received.
Remaining: Receive area
is larger than send area.
Data is received and
remaining words are
cleared.