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  1. Qt
  2. QTBUG-83940

modbus RTU timeout

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    Details

    • Type: Bug
    • Status: Reported
    • Priority: P2: Important
    • Resolution: Unresolved
    • Affects Version/s: 5.12.5, 5.14.2
    • Fix Version/s: None
    • Component/s: SerialBus: MOD Bus
    • Labels:
      None
    • Platform/s:
      Windows

      Description

      Using the modbus RTU slave-master examples, reading holding registers is OK, while writing holding registers does not work with baud rate lower or equal to 9600 baud.

      Working conditions:

      • Eltima virtual port driver
      • any baudrate without strict baudrate emulation
      • baudrate > 9600 with or without strict baudrate emulation

      Non working conditions:

      • Eltima virtual port driver
      • baudrate <= 9600 with strict baudrate emulation

        Attachments

        1. com.png
          com.png
          23 kB
        2. setting.png
          setting.png
          49 kB
        3. timeout.png
          timeout.png
          58 kB
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          Activity

            People

            Assignee:
            heimrich Karsten Heimrich
            Reporter:
            caigm cai gm
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              Dates

              Created:
              Updated:

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