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Design pattern to modify an epoch timestamp on modbus tcp


  • Hi,
    I've a modbus slave talking to mango 2.8.8 , I want to show on the web interface an epoch coming from the slave, I've done this using the datapoint rendering

    0_1602451661204_2f47759f-9565-4639-8089-4656d6572ae1-immagine.png

    0_1602451721846_f198e747-5e88-466b-9daf-fc8950c2244e-immagine.png

    0_1602451751110_1a759389-49c8-43b9-ab46-46f31a33b2af-immagine.png

    but this is not a clean solution because:

    1. I can't show the right time including locale without showing the locale itself
    2. to modify the value on the slave I've to send to it an epoch and not a formatted date

    What is the cleanest way to obtain this behaviour (modify an epoch on a modbus slave)?
    Is there some example for this?
    Thanks,
    Antonio


  • Using a Meta Data Source I think could be possible to format the date as I need but how I can then map to an epoch as required when the user for example change the hour?