Rockwell Automation 1756-CNB ControlLogix ControlNet Bridge Module Installation Instructions - Manual (Page 25)

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Publication 1756-IN571B-EN-P - April 2001
Green OK Normal operation None required
INIT Module is initializing.
BW
>MAX Module is receiving too much
network traffic and connections
are timing out. The network
bandwidth has been exceeded. None require (temporary
condition).
If this happens frequently, add
another 1756-CNB or -CNBR and
split the traffic between them.
CMPT Secondary CNB is compatible
with its partner. None required.
DSNP Secondary CNB is disqualified
with no partner. Check corresponding slot of
primary chassis for type and
revision of module.
PwDS CNB is primary with a
disqualified secondary partner. Check the type and revision of the
1756-CNB module.
PwQg CNB is primary with a qualifying
secondary partner. Redundant system status. No
action required.
PwQS CNB is primary with a qualified
secondary partner.
PwNS CNB is primary with no
secondary partner. Check corresponding slot of
secondary chassis for correct
module.
Qfng Secondary CNB is qualifying. Redundant system status. No
action required.
QS Secondary CNB is qualified.
SW
ERR Node address switch changed
after power-up. 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.
Flashing
Green CNFG
ERR ControlNet configuration error. Recheck configuration.
NET
ERR
Network cabling error or no
other active nodes on network. Re-check your network cabling
and make sure another node on
the network is active (on line).
Diagnostics
LED Display
Cause Action
OK