Bender LINETRAXX PEM575 Series, Manual

Page: 81 / 172

Logging
81 PEM735_D00084_00_M_XXEN/02.2015
8.6 Power Quality log (PQ log)
The PQ log can store up to 1,000 events such as undervoltage/overvoltage and
transients. The newest event will replace the oldest event on a first-in-first-out ba-
sis: If there are more than 1000 entries, the 1001
st
entry will replace the first one, the
1002
nd
will replace the second one etc.
Each entry includes the event classification, its relevant voltage values and a time-
stamp in 1 ms resolution.
The PQ log can only be read via the communications interface. For details about the
applied
registers and their data structure refer to page 146 .
The PQ log can be reset from the front panel or via the communications interface.
8.7 Event log (SOE log)
The device can store up to 512 events. The newest event will replace the oldest
event on a first-in-first-out basis: The 513
th
event overwrites the first event, the
514
th
the second one, etc.
Possible events:
 
Failure supply voltage
 
Setpoint status change
 
Relay actions
 
Digital input status changes
 
Setup changes
Each event record includes the event classification, the relevant parameter values
and a timestamp in 1 ms resolution.
All event entries can be retrieved via the communications interface. For details
about the applied
registers and their data structure refer to page 148 .
The event log can be cleared using the buttons on the front panel or via communi-
cations interface.