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8-4
Troubleshoot Your ControlNet Communication Modules
If the OK
With This
Indicator Is
Module Status
Display
SW
ERR
Flashing Green
OK
CNFG
ERR
NET
ERR
(1)
If switches are set to 00 the display scrolls "FAULT: ADDRESS SWITCHES = 00, ILLEGAL"
Publication CNET-UM001C-EN-P - November 2005
It Means
Node address switch changed after power-up.
Normal operation.
ControlNet configuration error.
Network cabling error or no other active nodes
on network.
Network Channel Status Indicator Interpretation
When you connect the module to a ControlNet network
IMPORTANT
using only the NAP, the LEDs are meaningless.
• 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 flash, they must flash together, in phase.
Take This Action
None required, but we recommend that you
either return switches to their original settings
or replace the module, since this could indicate
a latent hardware problem.
No connections to or through the module. No
action required
Recheck configuration.
Re-check your network cabling and make sure
another node on the network is active (online).
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