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Fernando Q3 avatar image
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Fernando Q3 asked Jeanette F commented

How to move pallets from rack by pulling them from itemlist

Hi, there is something wrong in the process flow that does not allow to do the "load" activity. When an order arrives, it says how many pallets type 1 and type 2 must be pulled from rack and transported to ExitProcess flow Modelo con uso de transporters y push-pull items.fsm.

FlexSim 21.1.2
flexsim 21.1.2itemlist and processflowrack transporter pull items
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Jeanette F avatar image Jeanette F ♦♦ commented ·

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1 Answer

Eric M avatar image
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Eric M answered Fernando Q3 commented

Hi @Fernando Q3, there were a couple things I found that kept the process flow from continuing. One was that the load task executer was set to token.TaskSequence which label didn't exist. To fix this, I changed this and the other tasks to be token.resource. I added a group with the transporters to make the resource be connected to the objects. This way when a resource is acquired there is a reference to the transporter on the token.resource label which is good for making them complete the tasks in process flow.

The other issue is that the label token.puller was creating an array when pulling items from the list. When the transporter tried to load items, it just kept reloading the item that was 1st in the array. To fix this, I added a label called IndexValue on the tokens that keeps track of the order the tokens are created in the "create tokens" activities. This way I can use the IndexValue to find the item I want in the array token.puller.

Hopefully this makes sense. Let me know if you have any questions. I imagine in the future you will want orders to specify which type of item to pull. This can be done with Queries in the pull from list activities.

process-flow-modelo-con-uso-de-transporters-y-push-em.fsm


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Fernando Q3 avatar image Fernando Q3 commented ·

Eric thanks a lot. Pretty useful!

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