AC800M v5.1 IAC timeout
I am receiving IAC variable timeout in a SIS controller. The IAC variable (VAR) path goes like this: VAR (RealIO) in BPCS APPLICATION (status code 16#C0) goes to diagram in SIL1-2 application (status code 16#20020) and then moved to SIL1-2 program (status code 16#20020). I've read that timeout is not applicaple when IAC variables are exchanged between applications in the same controller, but as I can see from this example, this is not applicable to this situation.
Does anybody know the solution?
Thanks in advance!