Rockwell Automation 1785-L20C_L40C, D17856.5.14 ControlNet PLC-5 Programmable Controllers User Manual - Manual (Page 65)

Chapter 5
Monitoring and Troubleshooting Your
ControlNet System
5-3
The ControlNet status indicators inform you of the operational state of the
ControlNet network.
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
I/O
At least one node
configured for the
Cable(s) or connector(s)
broken or not connected
Repair or replace cable(s) or
connector(s), and reconnect
I/O
Flashing
Green/Off
configured for the
ControlNet network not
present or not operating
properly
Destination module(s) bad
or missing
Repair or replace module(s)
properly
Node(s) not on network Connect node to network
Flashing
Red/Off
All nodes configured for
ControlNet not present or
Cable(s) or connector(s)
broken or not connected
Repair or replace cable(s) or
connector(s), and reconnect
Red/Off
ControlNet not present or
not operating properly
Nodes not on network Connect nodes to network
Using the ControlNet Status
Indicators
I/O
A B