Hello. I have an HMI project that need to be migrated from WinCC flexible to TIA Portal because of new panel (OP 270 10" to KP1200). The system consist from one HMI and two 300 plcs.

There is a trouble with creating a routed s7 connection between HMI and the second controller that is connected to HMI through CP-342-5 of the first plc - after migration routing is lost.

I've tried to migrate these two plcs (without downloading, it's not possible, we use them in PCS7 multiproject) too and created routed connection, but it's not working on HMI runtime, no connection. Adding two proxy plcs do not provide "add S7 routed connection" option when i'm trying to create an HMI connection. 

Now i don't know what another method can i try (except adding one more HMI with MPI connection to the second plc :D ). Please, help me with suggest. Thanks.

(screenshots in .doc attachment)