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Modbus: exception 0x5



  • When reading from a remote device, sometimes I get the exception 0x5 (request timeout). The documentation says:

    Specialized use in conjunction with programming
    commands.
    The server has accepted the request and is
    processing it, but a long duration of time will be
    required to do so. This response is returned to
    prevent a timeout error from occurring in the
    client. The client can next issue a Poll Program
    Complete message to determine if processing is
    completed.

    But I cannot find this function in QModbus* classes.
    How should I handle this exception?


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