const auto text=QTextCodec::codecForName("cp1251")->fromUnicode(msg);
Msg+=STX+QString::number(j)+text+CR+ETX+CheckSum(QString::number(j)+text)+CR+LF;
serialPort->write(Msg);
TEXT is the division of ASCII text message itself and the number of characters for one text is limited to less than 240 characters (including “CR”) and below
Но все равно, пробирки вставляет, тест не отмечает...
Вот что в терминале: