Thanks fo your reply.

FM458 cpu doesn't have a profinet port, TDC cpu card also, I would like to use my software with a more performant network like a profinet without rewriting my application. For this reason I asked about WinAC, some mounths ago at a siemens Profinet Demostration i asked the same question to Siemens's people and they told me there is a special version of winAC that is capable to run cfc application.

If you have any suggestions to reach my target, please let me know.

Thanks

Best Regards