Controlnet network channel-status indicators – Rockwell Automation 1768-CNBR CompactLogix ControlNet Communication Module Installation Instructions User Manual
Page 27
CompactLogix ControlNet Interface Module 27
Publication
1768-IN006A-EN-P - September 2007
ControlNet Network Channel-status Indicators
The ControlNet network channel-status indicators appear in one of the
following states:
• Steady - indicator is on continuously in the defined state.
• Alternating - the two indicators alternate between the two defined
states at the same time (applies to both indicators viewed together).
The two indicators are always in opposite states, out of phase.
• Flashing - the indicator alternates between the two defined states
(applies to each indicator viewed independent of the other). If both
indicators are flashing, they must flash together, in phase.
The ControlNet Network Channel Status Indicators table summarizes the
meanings of these states.
ControlNet Network Channel-status Indicators
Cause
Action
Off
No power
None or apply power.
Steady red
Faulted unit
Cycle power or reset unit.
If fault persists, contact
Allen-Bradley representative or
distributor.
Alternating
red/green
Self-test
None.
Alternating red/off Incorrect node configuration
Check network address and other
ControlNet network configuration
parameters.
Off
Channel disabled
Program network for redundant
media, if required.
Steady green
Normal operation
None.
or
A
B