https://forum.qt.io/topic/90552/qmodbusdataunit-bug
QModbusDataUnit bug? | Qt Forum
May 11, 2018 - There seems to be a bug in QModbusDataUnit::setValue(). This method will not set anything if its internal QVector is empty. After a quick look at the Qt sour...
bugqtforum
https://doc.qt.io/qt-6/qmodbusdataunit.html
QModbusDataUnit Class | Qt Serial Bus | Qt 6.11.1
classqtserialbus