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Ngc_khanh P avatar image
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Ngc_khanh P asked Ryan Clark commented

How to make the robots pick multiple items from different queues at one time?

Hi all,

My problem now is the robots only pick the red items first. They will move to pick the green and blue items if the red items are completed. What I want to do is make the robots pick multiple items from multiple queues at one time. I really appreciate u'all help!!!! Thanks

with new expertfit.fsm

FlexSim 20.1.3
task executersload multiple itempick from different queuesmodel simulationpicking option
with-new-expertfit.fsm (208.1 KiB)
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Ryan Clark avatar image Ryan Clark commented ·

Hi @Ngc_khanh P, was Felix Möhlmann's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

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Felix Möhlmann avatar image
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Felix Möhlmann answered Felix Möhlmann commented

Queue "C_G" has the first ranked connection to the "in" queues. As such it will try to send an item first. If that's sucessful the in queue will be considered full due to the content limit and the other queues don't get to send anything.

To distribute the items better you should use the "Pull" option on the in queues. Which I think you did previously, but deactivated it. Is there a particular problem which caused you to do so?

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Ngc_khanh P avatar image Ngc_khanh P commented ·
Yes. Since the % that I used in the Pull option on the "in queues" is not a fixed and justified behaviour of the process, the model may be not trustworthy. I obtained that % solely based on my observation. Is there any alternative way besides using the Pull option?
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Felix Möhlmann avatar image Felix Möhlmann Ngc_khanh P commented ·
What other rule should the item distribution follow instead (FIFO, round robin, random type, random item, etc.)? Pretty much any rule should be possible to implement with the pull option.
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