Figure 22: ENVIS.Daq - configuration of the recorded quantities for the main archive.
2.5.7
Main archive configuration (Archiv 1, fig. 22)
Archive configuration options split into archive properties panel and puantity selection list panel.
Record Name
– naming the measurements helps users to identify them correctly during evaluation. For
example the transformer or circuit breaker ID could be a good descriptor. Record name is a string of up
to 32 charactetrs.
Archive Start:
–
Immediately
- starts recording immediately after the instrument is turned on;
–
Digital input
- saves records only when the digital input state is active;
–
Preset time
- starts recording only after the given date and time.
Record Interval
– this aggregation interval defines the frequency of creation of the main archive readings.
valid value is between 200 milliseconds (10/12 periods) and 2 hours.
Cycle Recording
– this switch defines what happens when main archive is fully recorded. When active, the
archive continues to overwrite archives in a cyclic manner (FIFO). When disabled the recording stops and
the oldest measured data is kept.
Flash Space
— total memory space assigned for the archive data.
Record Len
— actual length of the configured record.
Estimated Record Time
- this provides estimation of the overal capacity of the archive at the actual
configuration. It is updated only after the configuration is written into the instrument and read back.
Quantities
— in this section user can choose quantities which should be recorded. required values should
be enabled in the
avg
and/or
min/max
column .
–
Power
: in the
I/E
line user can choose to separately evaluate and record consumed and generated
active power resp. the inductive and capacitive reactive power.
–
Harmonics
- user choses which data should be recorded in regard to harmonics.
22
