Beiträge von Swing

  • Does the 3EM log peak power?

    Well I can partly answer my question about the trigger/events.

    The 3EM API lists under actions an over_power_url to be invoked at a user defined threshold.

    So that at least is helpful, I can give an alarm and do some action, like shutting things off.

    And I can also use it for logging, although it is a bit crude.

    On the log file I find this:

    Zitat

    Shelly 3EM: /emeter/{index}/em_data.csv

    This provides an export of the data gathered by the device. For each measurement channel, a CSV file is generated with the following columns:

    • Date/time UTC
    • Active energy Wh
    • Returned energy Wh

    This will always contain data for the entire time range stored on the device.

    But it doesn't say the interval. I read somewhere that this interval is 1 minute for the first 24 hour and becomes less after that?

  • Does the 3EM log peak power?

    I have seen some screenshots of the 3EM app, and clearly it logs energyconsumption and it can show the live power draw.

    But I am interested in history of peak power usage.

    Is it correct that I can only derive 1 minute peak numbers because of 1 minute energy consumption resolution in the logging?

    Or does it actually log peak power usage to?

    Are there also triggers/events to be set when certain power or current levels are exceeded?

    Thanks in advance