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7.6 Event logging
The Node Controller Module logs events (300 maximum) which can be accessed through the
digital communication links. Each event is recorded with a time stamp. Table 21 lists data
recorded in the event log.
Table 21: Data recorded in the Event Log
Event Data recorded
Entry and exit from alarm states
Channel ID and whether inhibit condition set or
cleared
Fault (each fault is recorded as fault
occurred and fault fixed)
Under-range, Over-range, Channel communications
access together with relevant channel ID
No detector enabled fault
System faults (each fault is recorded
as fault occurred and fault fixed)
Battery fault, FRAM data, Ribbon Cable bus, Display
Access, Power Monitoring Module, Module Access,
Bus PCB, Relay Output Module
Relay drive output Relay ID and whether the relay is driven or not
driven. This is the result evaluated by the relay logic
and not necessarily the relay contact state as
this is dependent on the relayconfiguration.
Communications actions Config cable inserted, Config cable removed.
Zero and cal operation performed over serial
communications with associated channel ID.
FRAM update The internal stored configuration
Power supply event Change in the power supply
occurred and changed to OK / Mains Fail,
Battery Low / Mains OK, Battery
Disconnect / Mains OK, Battery Low
Service event Date and time that the event log was cleared
MAINTENANCE