Bender LINETRAXX PEM575 Series, Manual

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Logging
79 PEM735_D00084_00_M_XXEN/02.2015
Tab. 8.4: Setup energy log
The energy log will only become active when the values of the Setup settings 1…5
are all non-zero.
For details refer to Modbus registers 7700…7712.
8.5 Waveform recording (WFR)
The PEM575 provides two waveform recorders capable of recording waveforms in-
dependently from one another. The total capacity of WFR 1 and WFR 2 is 32. Each
waveform recorder can simultaneously record 3-phase voltage and current signals
at a maximum resolution of 256 samples per cycle.
Waveform recorders can be triggered by
 
Setpoints
 
Undervoltage/overvoltage (sag/swell)
 
Transient events
 
Communications interface (manual)
During this process the control via communications interface has the highest
priority . Other WFR triggers will be ignored until recording is completed.
Each WFR log has a capacity of 32 entries. If there are more than 32 entries, the ne-
west entry will replace the oldest entry on a first-in-first-out basis: Der 33
rd
entry
overwrites the 1
st
entry, the 34
th
the 2
nd
etc.
WFR data is stored in a non-volatile memory and will not suffer any loss in the event
of power failure.
The programming of the waveform recorder log is only supported by the commu-
nications interface. For details about the applied
registers and their data structure
refer to page 141 .
5
Number of parame-
ters
0…5
6
Parameters 1…5
0 = Import P
1 = Export P
2 = Import Q
3 = Export Q
4 = S
No. Parameters Setting