So I have 3 types of item (1,2,3) that is fed into a processor. I would like to execute the set-up time when the incoming item for the processor changes from 1 to 2, and vice versa (2 back to 1). To add to this complexity, item 3 is sparsely distributed and does not need set-up time at all.
Anyone have an idea how to solve this without process flow?