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3 .5 Event logger
The event logger contains e.g. status information on the real time clock. The
status information is stored with each change, e.g. time adjustment. The time
adjustment is used for e.g. determining the duration of a voltage cut-off, two
minutes being the minimum duration to register.
The logging depth is 64 events.
The register structure of the event logger:
Time stamp
Control
Year
Month
Day
Hour
Minute
Control
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Phase 1 Phase 2 Phase 3
Clock
adjusted
Clock adj.
7-15
secs.
Clock adj.
15-60
secs.
Clock not
valid
Periodic
error
