how to fetch data from SIEMENS S7-300 PLC using DOTNET(C#)?

shrek · Apr 6, 2010

Could someone tell me how many approachs can be used to fetch data from SIEMENS S7-300 PLC using DOTNET(C#)?

thanks a lot.

shrek · Apr 6, 2010

Can I fetch the data from siemens s7-300 plcs(linked in profibus) using kepware opc server?
And any advice will be appreciated.
thanks.

JesperMP · Apr 7, 2010

I dont think Kepware has an OPC server for Profibus to an S7 PLC. They have for MPI (via PC adapter) and for ethernet TCP/IP.

Look at this site for help on how to program an OPC client in C#:
http://www.opcconnect.com/dotnet.php#clients

This site has a direct driver .net component for MPI and Ethernet TCP/IP:
http://www.indi-an.de/index.php?option=com_content&view=article&id=65&catid=2&Itemid=69

Deltalogic has a series of direct drivers, also for Profibus via a Siemens CP:
http://www.deltalogic.de/content/view/21/38/lang,en/

shrek · Apr 7, 2010

ok,thank you for the reply,and is the following library also a MPI and ethernet TCP/IP driver?
http://libnodave.sourceforge.net/
it dose not support profibus?

thanks.

JesperMP · Apr 8, 2010

Yes, Libnodave supports MPI via the PC adapter and TCP/IP.
I think it maybe also supports Profibus via the PC adapter.

zottel · May 4, 2010

JesperMP said:
Yes, Libnodave supports MPI via the PC adapter and TCP/IP.
I think it maybe also supports Profibus via the PC adapter.

It supports Profibus if the hardware supports it:
- Via serial PC adapter.
- Via Profibus - Ethernet gateways like IBH-Link, NetLink-PRO etc.
- Via PC side Profibus CPs if Siemens drivers are installed and s7online protocol is chosen (I do not recommend this. It is not very mature).

shrek · Nov 28, 2010

Inquiry about direct driver library(dotnet) for siemens S5-316.

hi,
Could someone propose me a dotnet(C#) library(direct driver) which can communicate with siemens S5-316(memory mapping,read and write data from/to S5 PLC in Ethernet)?

thanks a lot.

daniel9ds · Nov 28, 2010

I am a newbie here and just wanna say Hi to everyone. I am Daniel from Pennsylvania, US.

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how to fetch data from SIEMENS S7-300 PLC using DOTNET(C#)?

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