GE Industrial Solutions Entellisys 4.0 System User Manual - Manual (Page 208)

System health 208
14
14.2 Troubleshooting
One of the LEDs is red indicating a problem, but the Sequence of Events log does not provide
any details about the condition
•
Ensure that the event is not being filtered from the display. On the Sequence of Events
screen, click Preferences, and then click Filter Events and review any unchecked events.
Messenger Communication Status
CPU Communications Red This condition indicates a communications problem between the
Messenger and one of the CPU's. One of the following events may
appear in the event log:
Caution Messngr Not Receiving From CPUA
Caution Messngr Not Receiving From CPUB
Communication Wiring Red This condition indicates that a Messenger is reporting that there
is no communication link between itself and one of the CPU's.
One of the following events may appear in the event log:
Caution Enet Cable Disconnected Messngr CPUA
Caution Enet Cable Disconnected Messngr CPUB
Messenger Control Power
Primary Control Power Red Power is not available to the Messenger from the primary control
power source. See
Alarms and events on page 213 under
“Caution Messngr Control Power Lost” event for additional
troubleshooting information.
Secondary Control Power Red Power is not available to the Messenger from the secondary
control power source. See
Alarms and events on page 213 under
“Caution Messngr Control Power Lost” event for additional
troubleshooting information.
Table 14-1 descriptions and recommended actions for abnormal states
Status LED Status Description and Recommended Action