Omron C200HW-CLK21 Operation Manual page 318

Status Area and Troubleshooting
Node 4 Node 3
Node 8 Node 7
Node 12 Node 11
Node 16 Node 15
Node 20 Node 19
Node 24 Node 23
Node 30 Node 27
Node 32 Node 31
Node 36 Node 35
Node 40 Node 39
Node 44 Node 43
Node 48 Node 47
Node 52 Node 51
Node 58 Node 55
Node 60 Node 59
0 0
Bit Status and Error Processing
Data Link Status
4-Bit Format Specified
Node 2 Node 1
Node 6 Node 5
Node 10 Node 9
Node 14 Node 13
Node 18 Node 17
Node 22 Node 21
Node 26 Node 25
Node 30 Node 29
Node 34 Node 33
Node 38 Node 37
Node 42 Node 41
Node 46 Node 45
Node 50 Node 49
Node 54 Node 53
Node 58 Node 57
Node 62 Node 61
The data link status can be reflected in 4-bit format only when using a CS1W-
CLK21-V1 or CJ1W-CLK21-V1. It is reflected in 8-bit format with other mod-
els.
When the first data link status word is set to the default (0000) for either the
manually set data link tables or automatically set data link tables (In the first
data link status word parameter), the data link status is stored in the above
area (CIO 1500 + 25
When a different area has been set for the first data link status word, the sta-
tus is stored in the specified area. The status storage format is the same as
the one shown in the above diagram.
Note Refer to 5-4 Checking Data Link Status for details on status flags.
Bit status
PLC's CPU Unit error is 1:
ON
PLC status
0: Inactive (user program not running)
1: Active (user program running)
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
(Unit No.) (+ 7 to +22)).
Probable cause
A fatal PLC error, non-fatal
PLC error, or a watchdog
timer error has occurred.
The Unit is mounted to a
non-compatible PLC.
Section 9-2
Probable remedy
Refer to the PLC's opera-
tion manual and correct
the error. If the error occurs
again, replace the PLC.
Refer to 1-2-4 Controller
Link Unit Models and PLCs
and mount onto the correct
PLC.
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