Releasing items from one queue to another only if the second queue is empty

Question

question

Akila_indeewara_kulathunga Wad asked Jun 4, '24 Jeanette F commented yesterday

Releasing items from one queue to another only if the second queue is empty

I want the queue 2 to release items to queue 3 only if the queue 3 is empty. How is it possible to do that?

Sample Model2.fsm

Software Version:

FlexSim 24.1.0

queues

1717516807433.png (210.0 KiB)

sample-model2.fsm (28.0 KiB)

· 1

Jeanette F ♦♦ commented · yesterday

Hi @Akila_indeewara_kulathunga Wad, was Felix Möhlmann's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

If we haven't heard back from you within 3 business days we'll auto-accept an answer, but you can always comment back to reopen your question.

0 ·

Answer 1 · 2024-06-05T09:44:11Z

Felix Möhlmann answered Jun 5, '24

When an item enters Queue3, use the On Entry and On Message triggers to close the input after some small amount of time (to allow for items to enter in that instant).

In the On Exit trigger, open the input again once the last item exits.

sample-model2_1.fsm

sample-model2-1.fsm (28.8 KiB)

question