[Development] modbus over serial port on windows 7 ?

Ralf Nolden nolden at kde.org
Tue May 31 08:59:14 CEST 2016

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

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