Query all of the same types of various racks in a list

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Thin Tn asked Jun 27, '23 Thin Tn commented Jun 27, '23

Query all of the same types of various racks in a list

Hello, esteemed teachers and everyone, I am working on a model for a component manufacturing plant. I am implementing the process for operators to pull materials according to item type from pallets on the rack. The operator's activities are running smoothly, but my model stops at time 9407. I think this is because the forklift cannot find the item on the created item list, as the WHERE ItemTypeM == puller.Type command only requests the types on the current level and cannot pull the same type items on other levels and racks. My model may be difficult to understand due to the amount of information, so I would like to ask how I can query all items of the same type on all racks to reference for the forklift's load operation. I sincerely hope for everyone's help in the community. Thank you all.findtypeitem.fsm

Software Version:

FlexSim 19.0.0

list query call flowitem in list item types

z4468338176674-9f9a49436357dce9b99dd4093e888eb4.jpg (174.0 KiB)

findtypeitem.fsm (5.4 MiB)

5 |100000

Attachments: Up to 12 attachments (including images) can be used with a maximum of 23.8 MiB each and 47.7 MiB total.

Answer 1 · 2023-06-27T13:17:32Z

Felix Möhlmann answered Jun 27, '23 Thin Tn commented Jun 27, '23

You can create an expression field that reads the Type of the items on the pallet (in this case from the first item, since there are no mixed pallets). Note that the expression field is dynamic and checks if there actually are any items on the pallet. This is needed because the pallets are created empty inside the rack. If you first create the pallet, then fill them with items and only then move them into the racks this would not be needed.

Then you can query directly for the type.

The model still stops because there simply aren't any more items of type 1 in the rack.

findtypeitem_1.fsm

1687871597316.png (6.5 KiB)

1687871638515.png (3.4 KiB)

findtypeitem-1.fsm (5.4 MiB)

· 1

5 |100000

Attachments: Up to 12 attachments (including images) can be used with a maximum of 23.8 MiB each and 47.7 MiB total.

Thin Tn commented · Jun 27, 2023 at 03:51 PM

Thank you for your help, it is very useful for me.

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