question

James Riebau avatar image
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James Riebau asked James Riebau commented

Removing a pallet from floor storage after certain amount of time?

I have an issue with my model that I've trying to fix for a while, which I can't seem to figure it out. I'm sorry I don't have the model to post right now.

I am currently using floor storage locations to simulate outbound trailers. I don't have actual outbound orders for product, I just have each pallet on a delay which represents the part's average time on hand. After the delay, the pallet is allocated to an empty "dock" floor location, or one with the same customer. I have the outbound port closed until the location reaches 30 pallets, then the port opens and the pallet goes to a "dispatch" sink.

My problem is sometimes at the end of a production run, we wont make product for a certain customer for a while, and a dock location will get stuck with less than 30 pallets for a very long time. After running my model for extended periods this will happen at every dock location, forcing my model into gridlock.

I've been trying to find a way to automatically move pallets from these floor location to a sink after they've been there over around 4 hours. Any ideas how I can do this?


Thanks,

Jim

FlexSim 22.0.0
warehousingfloorstorage
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1 Answer

Joerg Vogel avatar image
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Joerg Vogel answered James Riebau commented

You create an event on entry for each pallet by a message method to be received 4 hours later. You can set as From parameter a reference to your entering pallet or you set a message parameter to keep this data.
On Message receiving you compare the 4 hours old reference to the last item of your slotItems. If you achieve a logical true, then move all slotItems in a loop structure to a sink.
Because a property of slotItems is an array you can evaluate the length of this array.

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James Riebau avatar image James Riebau commented ·
Thank you. I was able to use a message to make this work.
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