fritz

mhzmark

So can you confirm then that S7-1200 can run "Fetch/Write" service and our application can communicate with S7-1200 via "Fetch/Write" protocol?

Hello mhzmark

I very much doubt that Fetch/Write Services are supported by an S7-1200 (but would like to stand corrected on this one).
As far as I'm concerned Fetch/Write Services have left the town on the same train that the S5 PLC's took.
While they are still supported on S7 300's and 400's (for upgrade and backward compatibility purposes), I'd be very suprised if theS7-1200 does (or will in the future) support them.

Since I can only give you "99% sure" answer though, I suggest you launch a Support Request directly with Siemens(see right hand side of the forum under "Contact") and keep us posted about the answer.

I hope this helps

P.S.: Why (or what for) do you need Fetch/Write Servicesin a 1200? (and why aren't you more concerned about the lack of STL as a programming language in it instead of missing Fetch/Write Services?)