I have to exchange telegrams with old AEG A500 PLCs on MODBUS+. I would prefer OPC, if possible. Schneider told me to test, if it is working with OFS and SA85 or PCI85 card. Does anybody have experience (since testing is not so easy, because the PLCs are far away)? What are the alternatives? Can I write my own code (c, c++) to directly communicate with these PLCs via SA85 card? Are there somewhere examples avaiable? Can anybody give me a hint?

Thanks very much,

Tony

 

http://www.apex.de

 

Where I work we have about 10 AEG PLCs. They communicate by Modnet 1SFB. (one central Master(also AEG PLC). Now we have build a PC server, for replacing the AEG Master PLC). A program is written in c++, and there is a special PCI card (self made by somebody).

This part is already working, it is a gateway to S7. In the future all te AEG PLCs will be replaced by S7 stuff. (step by step).