Pick item from queue after determined event

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Telmo_Silva asked May 28, '23 Telmo_Silva commented May 30, '23

Pick item from queue after determined event

Hi there,

I have been designing a production line. I created a label that every time an item comes out a processor (AF), it increments. When this label is 50, I want to take an item from a queue (Gri) and take it to a Sink (Sink3). I can make the whole ProcessFlow but I don't know how to say last item in the "Item" slot at a "Load" process.

How can I make this?

Cenário1.fsm

Software Version:

FlexSim 22.2.0

load conditional decide event trigger

image-2023-05-28-125941936.png (10.1 KiB)

cenario1.fsm (258.2 KiB)

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 · 2023-05-30T06:27:26Z

Felix Möhlmann answered May 30, '23 Telmo_Silva commented May 30, '23

Items inside a queue (or other fixed resource) are subnodes of that object. You access them through "object.subnodes[N]" where N is the rank of the item. The total number of subnodes can be obtained with "object.subnodes.length", so "object.subnodes[object.subnodes.length]" would refer to the last item in the queue.

That said, you can also use the properties "first" and "last" to access the first and last subnode respectively ("object.last").

In any case, you should check if there actually are items in the queue before you attempt to load one.

cenario1_1.fsm

1685427844084.png (11.6 KiB)

cenario1-1.fsm (256.3 KiB)

· 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.

Telmo_Silva commented · May 30, 2023 at 02:36 PM

Great answer. Solved the problem. Thank you.

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