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: https://github.com/killnine/s7netplus/wiki
You need at least Visual Studio 2017 (you can download the Community Edition for free).
PM> Install-Package S7netplus
https://ci.appveyor.com/project/mesta1/s7netplus
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.