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A .NET Library for Siemens S7 Connectivity


S7.Net Plus is a continuation of the work done on the S7.Net project by Juergen1969. I found the library simple and effective, but the project has languished unchanged since late 2009.

I was doing some automation work already and saw a few places where the code base could be improved. Because Juergen did not respond to my request for committing code, I decided to pick up where he left off here on GitHub.


Check the Wiki and feel free to edit it:

Supported PLC

  • Compatible S7 PLC (S7-200, S7-300, S7-400, S7-1200, S7-1500)

Supported frameworks

  • .NET Framework 4.5.2 and higher
  • .NET Standard 1.3 (.NET Core 1.0, UWP 10.0, Xamarin, ...)
  • .NET Standard 2.0 (.NET Core 2.0, .NET Framework 4.6.1)


You need at least Visual Studio 2017 (you can download the Community Edition for free).


PM> Install-Package S7netplus

Latest build (Appveyor)

Build status

Running the tests

Unit tests use Snap7 server. On Windows, the DLL is included with the test project. On other platforms, Snap7 must be installed manually before running tests.

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