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S7-1200 Ethernet data transfer to PC without OPC

7/14/2011 10:32 AM	Rate (0)
S71200_Vision Posts: 3 Rating: (1)	Hi ! I would like to communicate parameters (read/write, fixed amount of data, to/from one DB) between PC and S7-1200 via the Ethernet port. I browsed the forum, and there are some comments on how to establish this by Simatic OPC Server or PC Access. Actually, I would really like to avoid the need to install any third party software on our controll PC (There are already to many ...). Thus I am looking for the possibilities of a simple socket communication in C#, in style with TcpListener tcpListener = new TcpListener(PLC_IPAdress, portNo_); tcpListener.Start(); listenSocket_ = tcpListener.AcceptSocket(); and then using listenSocket_.Send(....); or listenSocket_.Receive(....); Is it possible to run this simple setup with the S7-1200, using the standard TCON, TRCV, TSEND, TDISCON ? How to code/send the sync times in this case ? Has anybode done this and can send some sample code ? Target PC system is Windows XP SP3 Pro, .NET, C# Thanks for some help !
S71200_Vision Posts: 3 Rating: (1)
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7/15/2011 8:39 AM	Rate (0)
Rated X Posts: 1547 Rating: (129)	Hi S1200-Vision, sorry, I don't really know the S1200, but I found these sample projects for the S7-300: Open Communication Wizard S7-300 - PC: http://support.automation.siemens.com/WW/view/en/25209116 Open Communication S7-300 - S7-1200: http://support.automation.siemens.com/WW/view/de/40556214 Regards, Rated X
Rated X Posts: 1547 Rating: (129)
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7/15/2011 9:39 AM	Rate (1)
S71200_Vision Posts: 3 Rating: (1)	Thanks for the info,Rated X! Good to know that someone browses the forum that quickly ... I continued my search and found an open source project that could do the communication jobb (at least to DB1 and I/O-areras).In case someone else is interested I give the links below (I will do no future checks if these links remain valid): Libnodave-project (base project for all different PLC communication) http://sourceforge.net/projects/libnodave/ and a demo application showing the use for datablock upload http://www.plctalk.net/qanda/showthread.php?t=57889 There are obviously issues about how well the software is tested, and if one is willing to use it on production systems ... We will continue to make a first machine working with it and test it for some months in real life. /S71200_Vision
S71200_Vision Posts: 3 Rating: (1)
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This contribution was helpful to 1 thankful Users yeliz08

5/20/2013 6:13 PM	Rate (0)
hassanayoub85 Posts: 13 Rating: (0)	Hello sir, I am searching for exactly same thing. Did you figured out how to interface S7-1200 with C# without OPC server? Any video tutorial or help? Thanks
hassanayoub85 Posts: 13 Rating: (0)
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5/21/2013 7:56 AM	Rate (0)
S71200_Vision Posts: 3 Rating: (1)	Hi hassanayoub85, I tried the libnodave, and it worked fine for me. No issues, no bugs that we noticed. It just works. Have a look athttp://libnodave.sourceforge.net/. We are using it to communicate from a Win XP PC directly to a S7-1200. /Regards, S71200_Vision
S71200_Vision Posts: 3 Rating: (1)
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