Modbus read from client

lionx
2013-05-15
2013-05-22
  • lionx - 2013-05-15

    ]Hello

    I hope I can get some help.
    I've been running with a WAGO 750-841, and need a read a value from a Modbus slave.
    I seemed to have tried everything, does anyone have an idea for how I do?
    I have attached a picture that shows a Modbus connection from a PC, so klientet works
    [attachment=0]Capture.JPG[/attachment
    I'm new to Modbus

    best Regards

    jens

    IMG: Capture.JPG

     
  • ndzied1 - 2013-05-21

    It depends on how the Wago implements a Modbus mater (client). It is possible that you have to use a library function to do this. Does Wago have any documentation on Modbus or examples?

     
  • lionx - 2013-05-22

    Hi all

    This is my first project where I'm using Modbus

    IMG: 2.JPG

    IMG: 1.JPG

    modbus.zip [47.23 KiB]

     

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