Connect HMI to PLC

hi all

i have same problem

i have TP900 comfort and CPU412-2DP. i program PLC in Simatic manager V5.5 pro.

i use device proxy in TIA-V13 to connect HMI to PLC via profibus connection.

in simulation everything is OK but when i connect HMI to PLC there is a fault on PLC.

i have 38C4 and 39C4 in CPU buffer. it say i should check the cable but the cable is ok.

now how can i fix this problem?

plz help me. thanks

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Split from How to conect a tp700 with a project s7 300 made in simatic?.

Closed cause question posted twice.

The second thread with the subject TP900 comfort panel want to connect to PLC via profibus is published within the conference Communication / Networks.

Best regards
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