Plz can any one clear me that how to communicate Wincc Flexible 2008 with Slc 5/04 cpu with Null Modem Cable on PC though DF1 Protocol. The SLC 5/04 Cpu is communcating with PC though RSlinx well but not with flexible. I hv made all nesassary setting in both Wincc flex and RSlogix 500.

I hv attached simple Program for both Plz check it to help me.
[schnippschnapp]

Thanx

I want to know wether RSlinx is distrubing the commiunication between SLC 5/04 and WinCC flexible 2008 in online mode should it be online or not during communication with WinCC and PLC plz clear me this