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King-Ki F avatar image
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King-Ki F asked tannerp commented

Merging Flowitems with the Same ID

Hello,

Using Process Flow, I'm trying to merge boxes with the same Order ID, which are created at different times and in different locations. After the boxes are created, I have an operator moving to the two locations to merge the boxes into a tote. The tote is then placed away into the rack.

Since I have boxes created at different times, I used a Wait for Event activity on the On Entry event of my conveyor, but I can not get the token to move to the next activity. I wanted to have the label on my boxes (named AWarehouseID) to match the ToteID, but it doesn't seem to work. 

merging-logic.fsmCould someone help me understand how I setup my Wait for Event wrong? Thanks in advance.
FlexSim 20.0.2
process flowwait for event
merging-logic.fsm (74.8 KiB)
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1 Answer

Benjamin W2 avatar image
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Benjamin W2 answered tannerp commented

Hi @King-Ki F,

In your scenario, it is probably better to use a pull from list than a wait for event. Your token is waiting for another token to enter an activity with the same label, however this event already happened, so it will be waiting for a long time. Please see the attached model.

I made a few other modifications to make sure the items are moved into the tote.

Let me know if you have any more questions!

pullfromlist.fsm


pullfromlist.fsm (74.9 KiB)
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King-Ki F avatar image King-Ki F commented ·

Hello @Benjamin W2

Thank you for the idea on the list and modifications. Learned some more!

When I run the model, I see my totes are being picked correctly. However, an operator is taking the boxes within the tote at the end of the pick and putting the boxes back on the conveyor. Now, my conveyor has extra boxes (blue circle) and my totes are missing boxes (red circle) as shown in the image below. Why is this only happening for the other 4 orders though?

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conveyor-issue.png (267.6 KiB)
Braydn T avatar image Braydn T King-Ki F commented ·

@King-Ki F

Could you upload your updated model? The one you have doesnt even run to that point.

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King-Ki F avatar image King-Ki F Braydn T commented ·

@Braydn T

Sorry, I had to make some updates to the model to see the flow of items and with the process flows. Please see the updated version.

merging-logic-v2.fsm

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merging-logic-v2.fsm (79.4 KiB)
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