Omron CS1W-CLK12-V1 Operation Manual page 256

Locating and Correcting Cable Disconnections
Communications
conditions disconnection(s)
Communications Both optical fibers
applications can con- disconnected at one
tinue operating. location
One optical fiber dis-
connected at one
location
One optical fiber dis-
connected at two
locations
Communications Both optical fibers
applications cannot disconnected at two
continue operating or more locations
normally
The following table explains how to correct problems with network communi-
cations based on the nature of the problems.
Probable
1. Locate the disconnection point by checking each node's ring status word
or connecting to one of the nodes with the support software (CX-Net in
CX-Programmer or Controller Link Support Software Ver. 2.00 or later.)
2. Check the power supply and backup power supply at the nodes indicat-
ed by the "node address of disconnected node" entries (bits 0 to 5 and
bits 8 to 13 of the ring status word.) Correct any problems that are found.
3. Check the optical fiber cables and connectors at the nodes indicated by
the "node address of disconnected node" entries (bits 0 to 5 and bits 8
to 13 of the ring status word.) Correct any problems that are found.
4. If the problem is not resolved with steps 2 and 3, it is necessary to plan
a system shutdown for maintenance. Shut down the system and replace
the following components to remove the component causing the prob-
lem:
• The cable and connectors between the affected nodes
• The affected Controller Link Unit(s) (1 or 2 Units)
1. Locate the disconnection point by checking each node's ring status word
or connecting to one of the nodes with the support software (CX-Net in
CX-Programmer or Controller Link Support Software Ver. 2.00 or high-
er.)
2. Check the power supply and backup power supply at the nodes indicat-
ed by the "node address of disconnected node" entries (bits 0 to 5 and
bits 8 to 13 of the ring status word) and any nodes in between. Correct
any problems that are found.
3. Check the optical fiber cable connection at the interface indicated by the
Disconnected Interface Flag (bit 6 of the ring status word) for the node
indicated in bits 0 to 5. Correct any problems that are found.
4. Check the optical fiber cable connection at the interface indicated by the
Disconnected Interface Flag (bit 14 of the ring status word) for the node
indicated in bits 8 to 13. Correct any problems that are found.
5. If the problem is not resolved with steps 2 and 3, it is necessary to plan
a system shutdown for maintenance. Shut down the system and replace
the following components to remove the component causing the prob-
lem:
• The cable and connectors between the affected nodes
• The affected Controller Link Unit(s) (1 or 2 Units)
The information reflected in the ring status words may differ from node to
node, so the disconnection locations must be corrected in order.
1. Locate the disconnection point by checking each node's ring status word
or connecting to one of the nodes with the support software (CX-Net in
CX-Programmer or Controller Link Support Software Ver. 2.00 or high-
er.)
2. Check the power supply and backup power supply at the nodes indicat-
ed by the "node address of disconnected node" entries (bits 0 to 5 and
bits 8 to 13 of the ring status word) and any nodes in between. Correct
any problems that are found.
3. Check the optical fiber cables and connectors at the nodes indicated by
the "node address of disconnected node" entries (bits 0 to 5 and bits 8
to 13 of the ring status word.) Correct any problems that are found.
4. Repeat steps 1 through 3 until all of the disconnections are corrected.
5. If the problem is not resolved with steps 1 through 4, it is necessary to
plan a system shutdown for maintenance. Shut down the system and re-
place the following components to remove the component causing the
problem:
• The cable and connectors between the affected nodes
• The affected Controller Link Unit(s) (1 or 2 Units)
Possible remedy
Section 10-4
239