Author Topic: Siemens S7 data block - String  (Read 9468 times)

Safes

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Siemens S7 data block - String
« on: September 01, 2005, 12:34:40 AM »
Hi,

I am trying to access stings in Data Blocks with "OPC Scout". However I can access only a few of the DBs. For example I can access DB 20 and DB 28 but not 19. What is the reason?

More detail:  OPC Scout shows the aviable address from 0 to 31 for accessable DBs, and 0 65656 for not accessable DB. I think it is not logical too. Why may DBs differ from each other? if not why OPC shows different values for different DBs and I can not access some of them?

Any help??

Thank you =)