Sub Flow in Process Flow Invalid Task

[mia_l]

[ FlexSim 19.2.4 ]

I am trying to run a model where the objects are batched, run through the 3 processors, goes to the Machine (does not matter from which processor) then goes to the MultiProcessor and lastly goes into the rack. For some reason on my third sub flow, I am receiving an invalid task error. How can that be fixed? Also, how can I program the operator's logic to prioritize running the Machine (which needs any processor as a preempt) and execute other tasks if the machine is running?

processflowsubflow.fsm

[benjamin_w2 · Accepted solution]

Hi @Mia L,

In your "Run Third Process Sub Flow", you don't assign the "myItem" label to the children like you do in the other sub-flows.

Compared to:

Simply assign myItem and it should work fine. You have the same problem in your "Run Fourth Process Sub Flow" activity, but you also need to assign token.Machine in this flow.