Read used connection resources in S7 1500?

Hi, 

Is there a way to read used connection resources in S7 1500 by using extended instruction, such as GET_DIAG or other system function or system function block?

Many thanks

Dong

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Split from TIP: S7-1500 connections resources.

Hi,

sorry, I only know the screen "connection resources" in plc properties and I did not know if there is any instruction for it.

Regards,

Towome