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Maria A31 avatar image
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Maria A31 asked Jason Lightfoot commented

Operators stop while model runs.

ReachTruck.fsmHello! I have a question regards with the attached model. I created dashboards for the operators to see how many pallets they pick up throughout the model. When the first operator has managed 72 pallets and the second 70, the model continues to run but the operators stop. Can you please help me?

Thank you in advance!

FlexSim 21.1.5
operations error
reachtruck.fsm (683.5 KiB)
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Maria A31 avatar image Maria A31 commented ·

This is where my model stops. It my case i do not have 4 pallets remaining in the Queue and the end times is 8:25.

1654597710148.png

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1654597710148.png (404.8 KiB)
Felix Möhlmann avatar image Felix Möhlmann Maria A31 commented ·
Yes, that is the same issue. There are some orders that contain more pallets than the buffer can hold. So it can happen that one operator becomes idle and blocks the other.

Jason's model he posted below gets around this problem by removing the idle operators from the main route.

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1 Answer

Felix Möhlmann avatar image
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Felix Möhlmann answered Jason Lightfoot commented

The only stop I'm seeing happens near the end of the model run. One operator has already finished and blocks the other one from moving the last pallets due to the traffic control.

1654594855741.png

Is this what you mean?


1654594855741.png (111.8 KiB)
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Maria A31 avatar image Maria A31 commented ·
Hey @Felix Möhlmann and thank you for your answer. Yes that is that i mean plus why does the model come to an end since it has more orders to process?
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Felix Möhlmann avatar image Felix Möhlmann Maria A31 commented ·

As I said, when I run the model, the stop happens near the end. There are no more pending orders. Only the four pallets you see in the screenshot above are still waiting to be picked up.

Are there pending events in the event list when the model ends for you?

1654596787805.png

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1654596787805.png (12.5 KiB)
Jason Lightfoot avatar image Jason Lightfoot ♦♦ commented ·

reachtruck_park.fsm


Felix is right - here's a version where they park away from the traffic control.

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reachtruck-park.fsm (685.9 KiB)
Maria A31 avatar image Maria A31 Jason Lightfoot ♦♦ commented ·
Thank you so much for your answer. Can i ask one last question. In the model @Jason Lightfoot posted, the second operator stops after picking 71 pallets. why is that?
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Jason Lightfoot avatar image Jason Lightfoot ♦♦ Maria A31 commented ·

When I run it they take 2000 pallets - 998 and 1002 being the split.

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