topic Re: Release an item from source as soon as a queue is empty in FlexSim Forum

Release an item from source as soon as a queue is empty

julia_tegami — Mon, 26 Aug 2024 19:17:02 GMT

[ FlexSim 24.0.0 ]

Hello,

I have a simulation that places 15 machines that arrive on a cart (in the "caixas" queue), inside a pallet. I wanted to ensure that after processing these 15 machines, the empty cart (in the "carrinhovazio" queue) was released so that it could be taken away and so on.

Here is the simulation file I'm working on: Paletização (2).fsm

Could you help me with this issue, please?

Thank you!

Re: Release an item from source as soon as a queue is empty

jason_lightfoot_adsk — Tue, 27 Aug 2024 11:25:54 GMT

Use the option to hold the item on the send to port and then when you want the item to move release it through a non-zero port number using releaseitem(). Specifying the port number will prevent the sendtoport firing again and holding it again.

Re: Release an item from source as soon as a queue is empty

julia_tegami — Tue, 27 Aug 2024 12:36:52 GMT

Is this option to hold the item configured in the source? sorry, I didn't understand

Re: Release an item from source as soon as a queue is empty

jason_lightfoot_adsk — Tue, 27 Aug 2024 16:17:18 GMT

You can hold (not release) on a number of objects:

Re: Release an item from source as soon as a queue is empty

julia_tegami — Tue, 27 Aug 2024 18:19:33 GMT

And to release it after a process ends, what would be the configuration?

Re: Release an item from source as soon as a queue is empty

jason_lightfoot_adsk — Wed, 28 Aug 2024 10:00:13 GMT

You use something similar to:

releaseitem(item,1);

which releases the item through port 1 without re-triggering the sendtoport trigger

Re: Release an item from source as soon as a queue is empty

julia_tegami — Wed, 28 Aug 2024 11:21:05 GMT

ok, thank you very much for your help

Re: Release an item from source as soon as a queue is empty

gustavo_teodoroD8NVF — Thu, 29 Aug 2024 11:38:55 GMT

One option for controlling the batching is through the flow process.

Each time an item enters the queues, a token is created in the process flow. To gather the 15 items, a Batch operation was used, where a label with the collected items is added (Make Array). Next, the transporter is acquired and a Position label is added to define which item will be loaded. Loading continues until all items (15) are loaded. Then, all items are unloaded and the transporter is released. This process repeats each time 15 new items arrive in the queues. An example is attached for reference.

FX_ReleaseItem.fsm