Dear Fellow Members,
I had a major breakdown in the PLC Control system due to sudden power outage in the plant.
To cut a long story short we had to re-upload the program, the program was successfully reloaded but currently we have no communication between OP30C and CP 5431 ( 6GK1543-1AA01) - we are also in the midst of a major upgrade to the line including the control system.
We have encountered this issue a month ago and we have thoroughly investigated the issue and according to an experienced Siemens engineer we are missing the Comgraph V.2.32 or A2.32 to configure the communication processor with the OP30C and S5.
If you could be iso kind to upload a link ( or send me a pm for Email ) for the Comgraph V.2.32 or A2.32 ( if you still have it ), I will buy them a big round of beer or even better offer you money 
Much appreciated Sir and thanks a million in advance.
Chris