Seems, this:
> qt.modbus: (RTU server) QSerialPort error:
QSerialPort::SerialPortError(ResourceError) "Операция ввода/вывода была
прервана из-за завершения потока команд или по запросу приложения."
It is an 'ERROR_OPERATION_ABORTED', that can be caused by ::CancelIo()
(e.g. when the serial port closes) or by a HW problems.
BR,
Denis
31.05.2016 12:23, Dmitry Shapovalov пишет:
Thanks for reply Ralf. Email more preferable for me.
Can you tell me what type of adapter you are using? Which version of
qtserialport are you using? Maybe my problem is related to the type of
serial port adapter. I tried use arduino with different usb-uart
chips(ch430 and pl2303), but unsuccessfully.
Here is output of qt modbus master example
Запускается
C:\Qt\Examples\Qt-5.6\qtserialbus\serialbus\modbus\build-master-Desktop_Qt_5_6_0_MinGW_32bit-Debug\debug\modbusmaster.exe...
qt.modbus: (RTU client) Sent Serial PDU: 0x0400000001
qt.modbus.lowlevel: (RTU client) Sent Serial ADU: 0x01040000000131ca
qt.modbus: (RTU client) Send failed: 0x0400000001
qt.modbus: (RTU server) QSerialPort error:
QSerialPort::SerialPortError(ResourceError) "Операция ввода/вывода
была прервана из-за завершения потока команд или по запросу приложения."
qt.modbus.lowlevel: (RTU client) Response buffer: "01"
qt.modbus: (RTU client) Modbus ADU not complete
qt.modbus.lowlevel: (RTU client) Response buffer: "0104024c494c06"
qt.modbus: (RTU client) Received ADU: "0104024c494c06"
qt.modbus: (RTU client) Cannot match response with open request, ignoring
Look like it actually sends request, but qtserialport reports error,
so qtserialbus(modbus) ignores response.
2016-05-31 11:59 GMT+05:00 Ralf Nolden <[email protected]
<mailto:[email protected]>>:
Am Dienstag, 31. Mai 2016, 09:34:19 schrieb Dmitry Shapovalov:
> Hello,
> can someone confirm that modbus over serial port is working on
windows ?
I have tested modbus over serial port on windows with two
Schneider Electric
PLCs, a Twido and a Premium, both with TCP and RS485. We could
evaluate your
problems on IRC if you want.
> all my experiments led me to the thought that it is absolutely
broken.
> i am using arduno as a modbus device. i tested it with qmodbus
and modbus
> poll. works great. but when i try to use modbus examples from
> qt(qtserialbus/examples/serialbus/modbus/master), look like it
can not send
> request.
> i tried release(5.6) and git version of qtserialbus and qtserialport
> modules with no luck.
>
> i am using windows 7 on virtualbox.
> arduino modbus library from here
> https://github.com/smarmengol/Modbus-Master-Slave-for-Arduino
> arduino sketch http://pastebin.com/FHW3B7TX
>
> it's me or it's really broken ?
--
Kind regards,
Ralf Nolden
_______________________________________________
Development mailing list
[email protected] <mailto:[email protected]>
http://lists.qt-project.org/mailman/listinfo/development
--
--
With Best Regards
Dmitry Shapovalov
_______________________________________________
Development mailing list
[email protected]
http://lists.qt-project.org/mailman/listinfo/development
_______________________________________________
Development mailing list
[email protected]
http://lists.qt-project.org/mailman/listinfo/development
