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Modbus TCP emPC-A/iMX6 SL

AlexD
2017-10-06
2017-10-07
  • AlexD - 2017-10-06

    Hello, i have a strange behavior with an janz tec emPC imx6 and i use the last codesys control 3.5.11.20 for it ,
    i want some data exchange with an Schneider M251.
    The behavior is :
    read 1 holding reg - OK,
    read n holding reg not working, all values are set zero...,
    with an modbus tcp scaner modscan32 i can read well from M251,
    In M251 i use builtin modbus server..
    any suggestions??? please...

     
  • AlexD - 2017-10-06

    tried also on raspberry the same behavior (

     
  • eschwellinger

    eschwellinger - 2017-10-06

    Hi,
    Could you attach the project or at least screenshots?
    Are you using the io varisbles in the pou's otherwise they will not be will updated.
    BR
    Edwin

     
  • AlexD - 2017-10-07

    thank you Edwin now works.

     

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