question

amandaprado avatar image
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amandaprado asked Jeanette F commented

Behavior list

Doubt - Line 2B.fsmHello Everyone,
I am not understanding why my Line 2B is blocked the most time than others.
Lines 2A and 2B are equals and the Line 2A is not getting blocked the same way than 2B. I believe the reason for this be the list, because if you note in Process Flow do not appears a red token into List_2B as appears into the others list.

Could help me?
Please see attached model.

Thanks in advance.

FlexSim 24.1.0
list
doubt-line-2b.fsm (18.1 MiB)
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1 Answer

Felix Möhlmann avatar image
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Felix Möhlmann answered amandaprado commented

Your sources create a token each time the content of a queue reaches/surpasses 12. This happens a different amount of times for the different queues. Compare the number of tokens in each section of the Process Flow: 2B only has 1 whereas 1A and 1B continually get more tokens the longer the simulation goes. This is because more tokens being present means that pulling the items can happen at the same time as a previous batch being transported. The next request for an AGV for that queue will thus be created earlier and the queue ends up being 'preferred' over others.

You should only create a fixed amount of tokens for each flow. How many will depend on how many simultaneous tasks per queue should be allowed.

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