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Troubleshooting Using Indicators
Section 10-1
10-1-2 CVM1 and CV-series Controller Link Units
Optical Ring Controller Link Unit
Troubleshooting with RUN, ERC, ERH, RING and INS Indicators
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 219.)
Ring Status:
CIO 1500 + 25
×
(Unit No.) + 23 (See page 222.)
Power Status:
CIO 1500 + 25
×
(Unit No.) + 24 (See page 222.)
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
RUN PS
ERC ERH
RING MA
INS LNK
SD RD
H-PCF Cable
GI Cable
Indicators
Status area
Error
code
Probable cause
Probable remedy
RUN
P/S
ERC
ERH
RING
INS
Lit
---
Not lit Not lit Lit
Lit
---
---
The Unit started
normally in token-
ring mode and
entered the net-
work normally.
---
Lit
---
Not lit Not lit Not lit
Lit
---
---
The Unit started
normally in token-
bus mode and
entered the net-
work normally.
---
Summary of Contents for CS1W-CLK12-V1
Page 3: ...iv ...
Page 5: ...vi ...
Page 9: ...x TABLE OF CONTENTS ...
Page 11: ...xii ...
Page 59: ...42 Component Names and Functions Section 3 1 Dimensions Unit mm ...
Page 62: ...45 Component Names and Functions Section 3 1 Dimensions Unit mm ...
Page 91: ...74 CVM1 and CV series Optical Ring Controller Link Units Section 4 2 ...
Page 108: ...91 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Page 125: ...108 Checking Data Link Status Section 5 4 ...
Page 181: ...164 Setting Routing Tables Section 7 4 ...
Page 199: ...182 Memory Areas Related to Duplex Operation Section 8 6 ...
Page 275: ...258 Handling Precautions Section 10 7 ...
Page 298: ...281 CS series Optical Bus Controller Link Units Appendix C Dimensions Unit mm 101 35 130 ...
Page 299: ...282 CS series Optical Bus Controller Link Units Appendix C ...