The files can be downloaded to the same directory.

For Shelly 1PM Plus and later use
shelly_logger.py 
ShellyDailyDisplay.exe


For a Shelly 1PM only use
shelly_logger_gen1.py 

The idea is to view what a Shelly registers on a minute by minute basis and for the day. 

The Shelly loggers display the current usage [logging it] and summary for the day.

ShellyDailyDisplay.exe does the daily totals logging and can quick access show both daily and the minute logs too.

Shelly behaviour varies by model but generally resets to zero if disconnected, and some when rebooted.
