We just released Arduino samples for AUTOMGEN (www.irai.com) using the C language post-processor of AUTOMGEN. It means that Arduino can now be programmed as a PLC with automation languages : ladder, sfc, etc. and also use all the AUTOMGEN items: IHM, dynamic debug, etc.
Automgen 8.101 version includes Arduino samples : http://www.irai.com/a8/a8101.exe
English manual for using Arduino from Automgen is available here: http://www.irai.com/friends/a8arduino_e.pdf
Coming soon: WEB scada generated from Automgen will be usable with Arduino