Usually i work with Allen Bradley PLCs, but most of PLC's programmers use Siemens PLC.
One thing that i really appreciate of Siemens is the possibility to connect a PC to PLC in a total FREE way, using LIBNODAVE.
Libnodave is a free library compiled in some programming languages (C, C++, C# etc...) that permit to exchange data with Siemens PLC for free and to embed the driver in the program.
You just have to add as reference the libnodave.Net.dll and start to read and write data using the simple samples inside the docs.
The main page of libnodave is here:
http://libnodave.sourceforge.net/
and the download page of the full package is here:
http://sourceforge.net/projects/libnodave/
At the moment they have developed the version 0.8.4.5, but the project is still alive and healty.
There is also an help forum here:
http://sourceforge.net/projects/libnodave/forums/forum/205657
that can help who is having troubles while writing is first driver.
As usual, once you wrote how to communicate with the PLC, you can fire an event of "DataChanged" and use it to update your WPF UI with databinding, as seen in the previous posts.
UPDATE: You can find a project contaning some communication samples on http://siemensplctoolboxlib.codeplex.com/ . It's one layer above libnodave and it's possible to download the the source code.
One thing that i really appreciate of Siemens is the possibility to connect a PC to PLC in a total FREE way, using LIBNODAVE.
Libnodave is a free library compiled in some programming languages (C, C++, C# etc...) that permit to exchange data with Siemens PLC for free and to embed the driver in the program.
You just have to add as reference the libnodave.Net.dll and start to read and write data using the simple samples inside the docs.
The main page of libnodave is here:
http://libnodave.sourceforge.net/
and the download page of the full package is here:
http://sourceforge.net/projects/libnodave/
At the moment they have developed the version 0.8.4.5, but the project is still alive and healty.
There is also an help forum here:
http://sourceforge.net/projects/libnodave/forums/forum/205657
that can help who is having troubles while writing is first driver.
As usual, once you wrote how to communicate with the PLC, you can fire an event of "DataChanged" and use it to update your WPF UI with databinding, as seen in the previous posts.
UPDATE: You can find a project contaning some communication samples on http://siemensplctoolboxlib.codeplex.com/ . It's one layer above libnodave and it's possible to download the the source code.
1 comment:
Thanks a lot for the Siemens PLC Toolbox. I already knew about libnodave but the new one looks promising and it's updated frequently.
Great blog anyway. Scada, WPF, Vectorial graphics and PLC Communication, all the things needed to do new generation SCADAs. Subscribed!!!
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