question

Pablo M9 avatar image
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Pablo M9 asked Pablo M9 edited

Scheduled arrival error

BODEGA PT VAND CON SALIDA Y INV INIC.fsm

Good evening

I have a problem with my warehouse model with 10 Racks and ID for each item (product).


Items enter through a Source with a scheduled arrival and items leave simulating average sales per scheduled sheets with "process flow"


The problem arises at 172800 seconds with the scheduled arrival, as an error appears and the products stop entering the warehouse (scheduled arrival stops)


Attached to the model

I thank you in advance for your valuable help


Pablo M

FlexSim 21.1.2
arribal schedule and racks
bodega-pt-vand-con-salida-y-inv-inic.fsm (16.1 MiB)
5 |100000
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1 Answer

Felix Möhlmann avatar image
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Felix Möhlmann answered Pablo M9 edited

Two issues that I found in your model:

1) You should place a 0-second delay inbetween the Find Item and Move Object activities. Otherwise an exception might occur when an item gets removed from the rack immediately after it entered and before the dwell time trigger happens.

1646989728044.png

2) The error at 172800s is caused by a "codigo" value being assigned to a different rack in the table than the source schedule. The assigned bayID (294) doesn't exist in rack 5, which causes the error.

1646990577943.png

Since the rack number is assigned to the item by the source, couldn't you just use that label in the Send to Port option of the queue, rather than using the table?

A quick tip:

You can speed up your model considerably by adding the "codigo" label as an indexed label to the Storage System. That way the Find Item activity doens't have to check every item each time.

1646990680325.png

bodega-pt-vand-con-salida-y-inv-inic_fm.fsm


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bodega-pt-vand-con-salida-y-inv-inic-fm.fsm (16.2 MiB)
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Pablo M9 avatar image Pablo M9 commented ·

Thank you very much for your tips, they were very valuable and they all worked and fixed the error in the model.

Only the Delay I placed 10s and not 0s because it continued with the error


Greetings from Ecuador.

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