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  1. Qt
  2. QTBUG-102878

QModbusRtuSerialSlave, QModbusRtuSerialServer: Inter Frame Delay t3.5 is missing

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P2: Important P2: Important
    • None
    • 5.9, 6.3.0
    • SerialBus: MOD Bus
    • Distribution: Yocto
      Hardware Platform: Embedded platform with PHYTEC core module.
    • Linux/Yocto

      Affected components:

      • Old name: QModbusRtuSerialSlave
      • New name: QModbusRtuSerialServer

      When receiving a Modbus RTU request, the response is not sent considering the minimum waiting time of 3.5 chararcters or 1750 us (for baud rates > 19200 Bd).

      Due to the fact that the inter frame delay (silent interval) of t3.5 is not implemented, it leads to the master device either not being ready to process the response or the response being misinterpreted.

       

       

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            heimrich Karsten Heimrich
            yruts Yevgeniy Ruts
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              Created:
              Updated:

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