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Functions
6.28 Logbook
Motor starter (3RK1308‑0**00‑0CP0)
Equipment Manual, 11/2019, A5E34821005002A/RS-AC/003
129
6.28 Logbook
Description
The logbooks contain a chronological list of device faults, trips and events that are assigned
a time stamp, thus creating a log. The log is stored internally so that the causes can be
evaluated at a later stage.
Logbooks
Three logbooks that can be read as a data set are available:
● DS72: DS72 logbook - Read device error (Page 180)
● DS73: DS73 logbook - Read triggering operations (Page 182)
● DS75: DS75 logbook - Read events (Page 184)
The operating hours (see Chapter DS95 Read statistics (Page 192)) of the device in
seconds are used as a time stamp. You can find the object numbers of the relevant
messages in the relevant data sets. The last 21 entries are stored in the logbooks. You can
read out the entries with the relevant data sets. The logbook is designed as a circular buffer.
After 21 entries, the oldest entry is overwritten. The latest entry is at the first location.
Logbook - Read device errors
The logbook "Read device errors" contains all device errors/faults. The object numbers of
the actual fault causes are entered, e.g. object number 476, "Current measurement
defective".
Logbook - Read trips
The logbook "Read trips" contains all group faults. The object numbers of the actual fault
causes are entered, e.g. "Switching element defective".
Logbook - Read events
The logbook "Read events" contains all warnings as well as certain actions. Incoming events
are reported as incoming. In addition, some events are also reported as outgoing. Incoming
entries are marked "+". Outgoing events are marked "-".