Cvm1 And Cv-Series Controller Link Units - Omron SYSMAC CS1W-CLK13 Operation Manual

Troubleshooting Using Indicators

10-1-2 CVM1 and CV-series Controller Link Units

Optical Ring Controller Link Unit
Troubleshooting with RUN, ERC, ERH, RING and INS Indicators
Indicators
RUN P/S ERC ERH
Lit --- Not lit Not lit Lit
Lit --- Not lit Not lit Not lit
242
H-PCF Cable
RUN PS
ERC ERH
RING MA
INS LNK
SD RD
RUN: Operating
PS: Power being supplied
ERC: Communications error
RING: Transmission path format
ERH: PC error
INS: Network participation
M/A: Data link mode
LNK: Data link
The RUN, ERC, ERH, RING and INS indicators can be used to check whether
Controller Link Unit startup and Network participation are operating normally.
Note Be sure to turn off the power to the PLC before performing any of the follow-
ing.
• Disconnecting the Unit or connectors.
• Securing Units or connectors.
• Setting hardware switches.
The following CIO words contain information on the status of the Controller
Link Unit. These words are referenced in the "Status area" column in the fol-
lowing table.
Error Information: CIO 1500 + 25 × (Unit No.) (See page 254.)
Ring Status:
Power Status:
Status area
RING INS
Lit ---
Lit ---
GI Cable
CIO 1500 + 25 × (Unit No.) + 23 (See page 257.)
CIO 1500 + 25 × (Unit No.) + 24 (See page 257.)
Error Probable cause
code
--- The Unit started
normally in token-
ring mode and
entered the net-
work normally.
--- The Unit started
normally in token-
bus mode and
entered the net-
work normally.
Section 10-1
Probable remedy
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