Toshiba 6F8C0791, Manual

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3. Database Management
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Report Data Processing
One system can be selected and performed from the three systems, namely, the minutely system,
hourly maximum system and hourly average system, for hourly, daily, monthly and yearly data
of process tags of the PCS-DS and internal process tags of the OIS/SVR. This report calculation
processing system is set up in the report database in each system. Tags of the power-factor
indicators and integrating meters are processed for report calculations as described in the
following.
(1) Hourly data
One designated value is calculated from instantaneous, hour maximum, hour minimum and
hour average values for one hour (60 samples) of historical tag data collected in periods of
one minute and the results of calculations are saved with report tags as hourly data.
(2) Daily data
One of the three systems, namely, minutely, hourly maximum and hourly average systems, is
selected and performed in accordance with the data processing system set up in the report
database.
1) Minutely system
The day maximum value, day maximum value time, day minimum value, day minimum
value time and day average value for one day (60 x 24 samples) of historical tag data
collected in one-minute periods are calculated and the calculation results are saved with
report tags as daily data.
2) Hourly maximum system
The day maximum value, day maximum value time, day minimum value, day minimum
value time and day average value for one day (24 samples) of hourly data are calculated
and the calculation results are saved with report tags as daily data.
2) Hourly average system
The day maximum value, day maximum value time, day minimum value, day minimum
value time and day average value for one day (24 samples) of hourly data are calculated
and the calculation results are saved with report tags as daily data.
(3) Monthly data
One of the three systems, namely, minutely, hourly maximum and hourly average systems, is
selected and performed in accordance with the data processing system set up in the report
database.