topic Re: Item in a processor limited for a certain type in FlexSim Forum

Item in a processor limited for a certain type

fabio_o4 — Wed, 17 Aug 2022 17:13:22 GMT

[ FlexSim 22.2.0 ]

Hello, in the model attached i want to limitate the item.sez == 1 input at a max of 4 at the same time. another item of the same type can enter only if one of them exit. The processor can have a max of 9 items in process at the time. The other item.sez don't have a input max content rule. I'm trying to make work the processflow u see in the model but i'm missing something.

Re: Item in a processor limited for a certain type

jason_lightfoot_adsk — Wed, 17 Aug 2022 22:27:02 GMT

Did you upload a model to the shared folder? If so, what was it called? If not then please use the link at the top of the page in the "Answer Upload Issue" section.

Re: Item in a processor limited for a certain type

FelixMoehlmann — Thu, 18 Aug 2022 07:06:39 GMT

I don't know how you tried to implement this logic, but I would suggest to use a zone in the process flow. It can have both a general limit to how tokens can enter it, as well as subsets with additional contraints attached to them.

So the zone can limit the token count to 9 while also limiting the count of tokens where the sez equals 1 to 4.

Re: Item in a processor limited for a certain type

fabio_o4 — Thu, 18 Aug 2022 17:05:56 GMT

Sorry, i can't update the model for a issue in the forum at the moment. i can link on dropbox

https://www.dropbox.com/s/u1qls1nac8vtgbw/Sample_1.fsm?dl=0

Re: Item in a processor limited for a certain type

FelixMoehlmann — Thu, 18 Aug 2022 18:22:33 GMT

It looks like you copied the queues and processor from a different model since there are a lot of invalid references and missing labels.

I think I see what you tried to do with the process flow. However, there will never be any tokens because the source only creates tokens at time 0 and the quantity is set as the subnodes of the processor, which won't have any items in it when the model starts.

I added the solution I suggested above to the model and removed a lot of the invalid trigger functions so the model can run without errors. I also changed the setup and process times of the processor to highlight how the process flow works a bit better, hopefully.

https://drive.google.com/file/d/1DUFzLaRQ0PLOZh0M5_D85TXFQMCp--ne/view?usp=sharing

Re: Item in a processor limited for a certain type

fabio_o4 — Fri, 19 Aug 2022 09:12:35 GMT

Yes, was an extract of an already existing model, i had to implement the logic for the processor. Thanks again the problem is fixed.