Thread: communication modbus between Builder c++ and plc schneider M340

  1. #1
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    communication modbus between Builder c++ and plc schneider M340

    Hi,
    I must do a communication in Modbus between Builder c++ and PLC schneider M340.
    I must code in builder c++, but i don't know how to do it.
    there is nobody to help me.

  2. #2
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    what have you tried so far?

  3. #3
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    oh man. this sounds like my first job out of college.

    i wish i could help but i never learned modbus, tho it was often talked about.

    my best advice to you is to obtain a copy of the standard and read it. as torturous as that may be it is the possibly only way you're going to do it.

  4. #4
    and the hat of int overfl Salem's Avatar
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    Maybe some carefully chosen keywords for google?
    https://encrypted.google.com/search?...%2B%2B+example
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.

  5. #5
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    jfgi: an acceptable alternative to rtfm.

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