topic Re: Limit activity to empty queue and alternate combiner for same item type. in FlexSim Forum

Limit activity to empty queue and alternate combiner for same item type.

guilherme_g9 — Mon, 30 May 2022 23:52:06 GMT

[ FlexSim 22.1.1 ]

First question is, i need to condition the action of sending an item from one queue to another only if it is empty using processflow. What i need is to limit the robot to move an item from buffer 3 to buffer 5 only if buffer 5 is empty.

And the other point is, i need to make 2 different products on the combiner that come from different ports based on which one is ready to go but only use 1 at a time. And i need that the combiner uses the item from buffer 5 and only 1 item from either buffer 6 ou 7 at a time based on which one is ready and waiting.

To ilustrate the question, there is a image of the model to help. And also, a image of the processflow of the activities from buffer 1 -> buffer 3 -> torno -> buffer 3 -> buffer 5.

Help.png

Help2.png

Re: Limit activity to empty queue and alternate combiner for same item type.

kavika_faleumu — Tue, 31 May 2022 18:03:29 GMT

Hi @Guilherme G9,

It's hard to know how to help without looking at your model. To receive a more accurate solution, please post your model or a sample model that demonstrates your question.

Proprietary models can be posted as a private question visible only to FlexSim U.S. support staff. You can also contact your local FlexSim distributor for phone or email help.

Re: Limit activity to empty queue and alternate combiner for same item type.

guilherme_g9 — Tue, 31 May 2022 20:32:58 GMT

teste.fsm @Kavika F Here is my model. I can't recall if i did any changes from the time i posted the questions, but i don't think so.

Re: Limit activity to empty queue and alternate combiner for same item type.

Jeanette_Fullmer — Tue, 31 May 2022 22:22:35 GMT

Hello @Guilherme G9,

Can you upload your uncorrupted model with the conveyors replaced? Please check any exceptions or errors.

Re: Limit activity to empty queue and alternate combiner for same item type.

guilherme_g9 — Tue, 31 May 2022 22:53:23 GMT

My conveyors are invisible, probable what ocasioned the corrupt model. At the moment, i am trying to resolve this situation and looking at possible graphics compatibility. As soon as i get the conveyors working, i will post the model.

Re: Limit activity to empty queue and alternate combiner for same item type.

guilherme_g9 — Thu, 02 Jun 2022 17:21:52 GMT

Hello @Jeanette F , i have fixed all the issues i had before and now have the updated version of the model. Just a reminder, im looking to limit the activity from moving an item from buffer 3 to buffer 5 only if buffer 5 is empty. I desire to implement this logic through the processflow, but any suggestions is welcome.

PFC.fsm

Re: Limit activity to empty queue and alternate combiner for same item type.

Jeanette_Fullmer — Fri, 03 Jun 2022 19:18:26 GMT

Hello @Guilherme G9,

To accomplish this I added a wait for event that checks Buffer 5 to see if its content is zero. You also need to make sure you select the field that says fire if initial value meets rule.

To solve your other problem, I added a queue between the combiner and the two buffers. The queue has a limit of 1 so the items fill in the queue in a first come first serve basis.

pfc_1.fsm

Re: Limit activity to empty queue and alternate combiner for same item type.

guilherme_g9 — Sat, 04 Jun 2022 01:07:23 GMT

It looks good! i liked the solution for the buffers, but i only have one question is if you could explain on what you did with the new list Buffer 3 you created and that new logic on processflow for buffer 3 to 5.

Re: Limit activity to empty queue and alternate combiner for same item type.

guilherme_g9 — Sat, 04 Jun 2022 01:18:19 GMT

I just checked, i don't think you used at all the list and new logic, just the event triggered was enough.

Re: Limit activity to empty queue and alternate combiner for same item type.

Jeanette_Fullmer — Sat, 04 Jun 2022 03:38:05 GMT

Hello @Guilherme G9,

I had created that list with a different solution in mind at first. I forgot to delete it once I figured something else out.