7. Functions
7.1 Historical energy data
1. SPM93 records the historical energy data as below:
1) Monthly total kWh (imp. & exp.), total kvarh (imp. & exp.), total kWh, total kvarh.
(last 12 months)
2) Yearly total kWh (imp. & exp.), total kvarh (imp. & exp.), total kWh, total kvarh.
(last 10 years)
2. SPM93 support freeze daily energy data and provide 2 kinds of data:
1) Freeze yesterday energy data from 22:00 to 24:00
2) Freeze day energy data per 15min from 00:00, and refresh data daily.
Note: User can inquiry historical energy data via MODBUS register.
7.2 TOU (Multi-tariff Energy)
SPM93 statistics energy of different tariffs.
SPM93 supports 2 tariff lists. Users can set the 2 lists separately. Each tariff list can
be set max. 8 periods in one day and 4 different tariff (F1, F2, F3, F4 means 4 kinds
of tariff, and F1 for Sharp, F2 for Peak, F3 for Flat, F4 for Valley).
Below example for setting the tariff lists:
Starting time (to end time)