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  1. Hello, I am not very experienced with Siemens PLC's I want to change program in one S7-200 CPU 226 (profibus). I have never connected my laptop to it before and I don't have that PLC's program. I have PC Adapter USB A2 cable for that and V4.0 STEP 7 MicroWIN SP7 program. I connected the cable, opened the program and tried different settings for connection, most of times the test in diagnostics says that status is OK. But! in communications window when ever I try to refresh the adapter is gives me error: "Class not registered" So I'm not able to upload the program from PLC to my laptop. Can anyone give me support?
  2. Symax model 400 processor.

    Hello.      Does anybody know if theres a newer interchangable version of the symax model 400 processor?     Anybody know wat equipment is needed to program a model 400??
  3. Dear Messrs., I need information to reverse engineer a GML diagram from the uploaded script. 1)Documentation for GML script language (iCODE ) Thanks,