Thanks for your valuable answer.
I have got the solution and now I'm able to get the Extended status and errors.
I have configured the UMC 100 Function block designed to read those values. As PDQ22 is different when compared to PDP22. PDP22 is connected to one UMC100 so easy to get the status and PDQ22 is connected with four UMC100s.
If any one needs the solution, Please mail me i can provide the complete solution with the UMC100 block used.