Troubleshooting For Duplex Systems Using Indicators - Omron SYSMAC CS1W-CLK13 Operation Manual

Troubleshooting for Duplex Communications Units
Note

10-6-2 Troubleshooting for Duplex Systems Using Indicators

CS1W-CLK13
CS1W-CLK12-V1
RUN RUN P/S
ERC ERC ERH ERH
RING RING M/A M/A
INS INS LNK LNK
SD SD RD RD
Name Color Status
RUN Green Lit
(operat-
Flashing
ing)
Not lit
ERC Red Lit
(commu-
Not lit
nications
error)
P/S Green Lit
(power
Not lit
supply)
1. The standby Controller Link Unit continuously performs self-diagnostic
tests (memory checks and internal loopback tests for communications cir-
cuits).
The internal communications circuits are completely separate from the
transmission path and so the loopback tests will have no influence on net-
work communications. If an error is detected by self-diagnosis, the ERC in-
dicator will turn ON and the details of the error will be reflected in A437 in
the CPU Unit's memory. If this happens, it is probably because of a hard-
ware failure and the Unit must be replaced.
2. The INS, SD, RD, M/A, LNK, and RING LED indicators on Controller Link
Units in standby mode do not turn ON.
This section describes the errors indicated by the indicators on Controller Link
Units used in duplex operation in a CS1D System and provides possible rem-
edies.
For details on troubleshooting for errors that have no relation to duplex opera-
tion, refer to 10-1 Troubleshooting Using Indicators.
CS1W-CLK53
CS1W-CLK52-V1
RUN RUN P/S
ERC ERC ERH ERH
RING RING M/A M/A
INS INS LNK LNK
SD SD RD RD
Meaning
Unit operating normally in active mode.
Unit operating normally in standby mode (per-
forming self-diagnosis).
Unit error.
Error detected by self-diagnosis.
No error detected by self-diagnosis.
Backup power is being supplied.
Backup power is not being supplied.
Section 10-6
285