Hello bhipune;

The following Application examples shows 2 ways of establishing and monitoring on a Siemens HMI the status of an ET 200S station over Profinet, one through data recor search, one through FB 126 "PNIODiag".

PROFINET IO – Diagnostics Processing in the User Program

Look at section 8.2 and 8.3 to see the available diagnostic screens on the MP 300 used in the example.

Here is a link to download FB 126 if you decide to go that route:

Diagnostic package PNIODiag for diagnostic evaluation for PROFIBUS DP and PROFINET IO (STEP 7 V5.x)

Hope this helps,

Daniel Chartier