Modbus RTU communication With Danfoss drive

bertcom
2023-05-02
2023-05-02
  • bertcom - 2023-05-02

    Hi,

    For my first project with codesys and with modbus RTU.
    This is a real hell.
    i managed to send and receive using coils.

    But i want to go further, i want ro readout the analog inputs from this drive over Modbus RTU.
    This i can find in the holding register. The system from Danfos : " Register = (parameter x10)-1"
    So i want to readout parameter 1620 so i nead to readout register 16119.
    Okay, So i configured everything. but still got this error:" the value to be written is not valid"

    Anyone who can help me?
    [

     
  • TimvH

    TimvH - 2023-05-02

    1620 * 10 - 1 = 16199 (not 16119)

     
  • bertcom - 2023-05-02

    oh god this is so stupid of me.

    Thank you!

     
  • bertcom - 2023-05-02

    oh god this is so stupid of me.

    Thank you!

     
  • bertcom - 2023-05-02

    oh god this is so stupid of me.

    Thank you!

     

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