Possible Bug In FindItem WareHouse Process Flow Activity

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Arun Kr asked Mar 3, '22 Jason Lightfoot edited Mar 3, '22

Possible Bug In FindItem WareHouse Process Flow Activity

Hi Everyone,

I'm finding that, in the find-item activity in the process flow. The tokens are stuck in the activity when we set the WHERE filter as equal to a particular item label value. For example,

WHERE Type = 0

To test this I have added two process flow activities with WHERE filter conditions.

WHERE Type = 0

WHERE Type  <1

In the second WHERE filter condition with Type < 1, the tokens were able to find the items and move down, and in the first one the tokens are stuck. Am I doing any silly mistake here Or Is this a bug?

Regards,

Arun KR

FindItemBug.fsm

Software Version:

FlexSim 22.0.1

warehouse

finditembug.fsm (46.8 KiB)

Answer 1 · 2022-03-03T17:58:18Z

Jason Lightfoot answered Mar 3, '22 Jason Lightfoot edited Mar 3, '22

You need to set Type on the creationTrigger, not the exit.

In my test to try and see what was going on I also cleared 'mark as outbound' so that both activities can find the same item, and remove the moveobject part - and there is something fishy going on to allow one token to read the lack of a label on entry as satisfying <1 while that same lack of label does not allow =0 to be true.

Update: perhaps it's because nullvar<1 evaluates to true

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