________________________________________ From: Interest <interest-bounces+alexander.blasche=qt...@qt-project.org> on behalf of Pfeiffer, Stephan <stephan.pfeif...@binder-world.com> Sent: Wednesday, 21 December 2016 11:18 To: 'Interest@qt-project.org' Subject: Re: [Interest] QModbusTcpClient - More than one Modbus ID query in TCP Package
>Your first hint was worth one's weight in gold. I've found my mistake with the >detailed logging. Glad I could help. >The problem wasn't the amount of Modbus packages within one TCP package. It >seems like that in Wireshark. >But the problem was the timeout value which was preset to low. Looped writes to multiple targets are not really permitted in the Modbus spec. It uses a request-response pattern. You have to wait for the response or the timeout before the next response can be sent. -- Alex _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
