Energy log

The meter provides energy logs. Energy day log can be read as a log file. The 3 types of energy log can be read as registers.

The following table lists the maximum number of entries of each log:

Log type	Maximum entries stored
Energy log (daily)	45
Energy log (weekly)	30
Energy log (monthly)	13

The meter has the log for accumulated active energy.

The energy log entry structure is shown in the following table:

Log Entry

Log date / time 4 registers

Energy value 4 registers

The 3 log types are:

Day: The log interval is 1 day. The logging occurs at 8:00 A.M. every day and the accumulated active energy for the previous 24 hours is logged.
Week: The log interval is 1 week. The logging occurs at 8:00 A.M. every Sunday and the accumulated active energy for the previous week is logged.
Month: The log interval is 1 month. The logging occurs at 8:00 A.M. on the first day of each month and the accumulated active energy for the previous month is logged.

You must use the display to configure the energy log. The day log, week log, and month log are enabled or disabled together during the configuration. However, the energy accumulation always starts from the fixed log time instead of the time of log enabled.

You can access day log, week log, and month log by reading the registers.

NOTE:

If the date/time is not set by the user after the date/time resets due to previous power interruption, energy keeps accumulating. After the date/time is set and the log time is reached, all the accumulated energy is written into the log.
If you reset the date, the log entries with log date after the reset date are not erased.
When the log time is reached, the meter checks the enable/disable status of the energy log. The meter logs the accumulated energy if the status is enabled and discards if the status is disabled. The accumulated energy resets to 0.
The energy log is circular. If the number of the log entries exceeds the maximum, the oldest log entries are overwritten.