Dear Experts,

I have facing some problem with FC calling. It shows dashed blue line when i call FC in OB1. TIA version V14.

Please suggest what is exact reason. When I open and monitor that FC goes online and shows actual values. What could be the reason?

Snap is attached for details.

Regards,

Nilesh Ramteke

Hi Nil.

I could not replicate the problem (I have TIA 18).

I would say it is only a visualization problem, because when you open the FC you can monitor the actual values.

Regards.

Dear Davide,

I have checked in simulator and it shows green. Attached snap for details.

Regards,

NR.

Hello Nil.

Most likely it is a bad visualization of Tia

Nil_R

I have facing some problem with FC calling. It shows dashed blue line when i call FC in OB1. TIA version V14.

Please suggest what is exact reason. When I open and monitor that FC goes online and shows actual values. What could be the reason?

As this is an S7-300:

If you want always have a solid green frame around the FC (as well as activate its ENO) you need to make sure that the BR bit is 1 before you exit the FC (e.g. add SET/SAVE STL instructions).

Have a look at THIS FAQ too for more on this