
Troubleshooting
ControlNet
5-8
ControlNet PLC-5
processors only
Troubleshooting – ControlNet Processors
Status Indicators
I/O Indicator
State
Description
Probable Cause(s)
Recommended Action(s)
Off
ControlNet I/O not present or not
operating
Normal operation if Channel 2 not
being used
None
Steady Green
All nodes configured in the
ControlNet map table present and
operating properly
Normal operation
None
Flashing
Green/Off
At least one node configured for
the ControlNet network not present
or not operating properly
Cable(s) or connector(s) broken or not
connected
Repair or replace cable(s) or
connector(s), and reconnect
Destination module(s) bad or missing Repair or replace module(s)
Node(s) not on network
Connect node to network
Flashing
Red/Off
All nodes configured for ControlNet
not present or not operating
properly
Cable(s) or connector(s) broken or not
connected
Repair or replace cable(s) or
connector(s), and reconnect
Nodes not on network
Connect nodes to network
I/O
A
B
I/O