Rockwell Automation 1756-CN2R ControlLogix ControlNet Interface Module Series A Installation Instructions - 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