1 - STRATON looks a very promising package. I wrote to them to have some price quotas.
2 - CODESYS remains (at the moment) top of the list for Raspberry Pi
3 - BEREMIZ stil is a choice. It is working on Raspberry . FREE and OPEN SOURCE
4 - 4DIAG (https://www.eclipse.org/4diac/en_help.p ... cally.html
) is an advanced FREE and OPEN SOURCE project based on IEC 61499. More advanced language than IEC 61131-3. It includes all IEC 61131-3 Function Blocks plus a lot more.
I tried the blink program on raspberry and working fine.
5 - Last but not least is OPENPLC project by thiagoralves. Grate job. FREE and OPEN SOURCE
Best of all recently thiagoralves here:
https://openplc.discussion.community/po ... 1309588065
Announced that his new version v1.0 will incorporate BEREMIZ editor . That is in reality PLCOPEN editor Same editor with CODESYS with minor differences but is industry standard. This will include the very famous OSCAT library as well.
The thing with OPENPLC solution is that his approach is working. Is FREE and OPEN SOURCE !.
I do not know what is the status of the I/O hardware so far here but for some time in OPENPLC forum we are trying to build a modular I/O PLC system.
Our latest approach is a system we call it M10 (after many many man hours from many contributes building various designs) .
That is modular I/O framework with dimension 100X100 mm based on Raspberry Pi bus. It may include a Raspberry or any other CPU in the future.
Work is in progress here and you are welcome to contribute if you like the idea. Work is stalled at the moment but the idea is alive and have very good prospects. We thing is a clever approach considering all data.
You can see project M10 here:
https://openplc.discussion.community/po ... ?&trail=60
I am very happy. I started this thread in 2011 and see so many doing so many.
Stay safe and healthy