I had some FC which were made by some other programmer. 

I have made some new FC in Simatic manager V5.5. When I load all the FC on PLCSim(simulator)

I am unable to see the status of the new FCs made by me. When I start simulation a green bar appears on the bottom of the screen. that bar is stable, but when I simulate other FCs I see that bar flickering. 

I also copied all the new FC data in old FC data. after doing this i was able to simulate it properly. 

Even when the data is in new FC, I am unable t communicate it with Win CC V7.0

Please help me,

Hello,

have you start the new FC in a OB?

Regards

Christoph