User manual

Publication CNET-UM001C-EN-P - November 2005
Troubleshoot Your ControlNet Communication Modules 8-9
Network Channel Status Indicator Interpretation
• 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.
Steady green or
off
SO_1 Old primary switchover phase 1 in progress. If the display shows any message for more than
three seconds, then the CNB module failed
during transition from one redundancy phase to
another. Replace one or both redundancy
modules.
SO_2 Old primary switchover phase 2 in progress.
SO_3 Old primary switchover phase 3 in progress.
SN_1 New primary switchover phase 1 in progress.
SN_2 New primary switchover phase 2 in progress.
SN_3 New primary switchover phase 3 in progress.
?Cpt CNB has not determined if it is compatible.
!Cpt CNB has determined that it is not compatible. Replace the CNB module with correct type and
revision.
(1)
If switches are set to 00 the display scrolls “FAULT: ADDRESS SWITCHES = 00, ILLEGAL” If switches are set to 99 in a redundant chassis, the display scrolls: “FAULT:
ADDRESS SWITCHES = 99, ILLEGAL IN REDUNDANT SYSTEM”
If The OK
Indicator Is
With This
Module Status
Display
It Means Take This Action
IMPORTANT
When you connect the module to a ControlNet network
using only the NAP, the LEDs are meaningless.