QTcpSocket to PLC S1200

[AlexisLara19]

Hi, I have been doing a HMI interface on Linux. I found the Snap7 library but don't works fine, is there any way to connect S1200 PLC by QTcpSocket (or something similar) and read a specific DB or input?.
I 'm new and some example would be very helpful for me.

[mchinand]

Do you have any documentation on how to communicate with a PLC S1200 (preferably links that you can share here)? If it supports TCP communication, you more than likely can communicate with it using QTcpSocket.

[ChrisW67]

It looks to me that the Siemens S7-1200 device uses PROFINET. There is a protocol implemented on top of IP with either UDP or TCP. While you should be able to connect using a QTcpSocket (or QUdpSocket), most of the work will be in the protocol. That is what Snap7 provides.

Generic Qt networking examples should be enough to cover establishing TCP/UDP communication. Implementing the S7 protocol is definitely well outside the scope of Qt forum.

[Pablo J. Rogina]

@AlexisLara19 said in QTcpSocket to PLC S1200:

but don't works fine

What are the issues?
The problem is that you cannot use it with Qt?
Are you able to use it standalone?