Controlnet channel status indicators – Rockwell Automation 1756-CN2R ControlLogix ControlNet Interface Module Series A Installation Instructions User Manual
Page 23

ControlLogix ControlNet Bridge Module 23
Publication
1756-IN602A-EN-P - November 2005
ControlNet Channel Status Indicators
The ControlNet channel status indicators appear in one of these
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 Indicator States table summarizes the meanings of these states.
Indicator States
Cause
Action
Off
No power
None or apply power.
Steady red
Faulted unit
Cycle power or reset unit.
If fault persists, contact A-B
representative or distributor.
Alternating
red/green
Self-test
None.
Alternating
red/off
Incorrect node configuration
Check network address and other
ControlNet configuration
parameters.
Cause
Action
Off
Channel disabled
Program network for redundant
media, if required.
Steady green
Normal operation
None.
and
A
B
or
A
B