S7.NET+ -- A .NET library to connect to Siemens Step7 devices
C# Batchfile
Latest commit 06bee24 Sep 12, 2016 @mesta1 mesta1 documentation and cleanup.
Signed-off-by: Michele Cattafesta <michele.cattafesta@mesta-automation.com>



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.


S7.Net Plus has a User Manual, check it out.

Supported PLC

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

Target framework

  • .NET Framework 3.5 or higher
  • Universal Windows Application (.Net Core) - see S7.UniversalWindowsApp.sln


PM> Install-Package S7netplus

Latest build (Appveyor)

Build status https://ci.appveyor.com/project/mesta1/s7netplus

Running the tests

Unit tests use Snap7 server, so port 102 must be not in use. If you have Siemens Step7 installed, the service s7oiehsx64 is stopped when running unit tests. You have to restart the service manually if you need it.