Stop running model once throughput threshold reaches

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question

Mia L asked Jul 24 2020 at 1:42 PM Mia L commented Jul 24 2020 at 3:07 PM

Stop running model once throughput threshold reaches

Hello, I am trying to add decide logic into my process flow to stop running the model when the throughput sink hits a certain amount (not when the queue is depleted), however I am running into an error. Is it possible to do this? If so, which Decide 'Send Token To' option should I be choosing instead?

Process Flow Circle.fsm

Software Version:

FlexSim 19.2.4

processflow flexsim 19.2.4 throughput decide activity

process-flow-circle.fsm (56.1 KiB)

Answer 1 · 2020-07-24T14:03:34Z

Joerg Vogel answered Jul 24 2020 at 2:03 PM Mia L commented Jul 24 2020 at 3:07 PM

You select from the Picklist the Option template Conditional Decide and set a condition you sample partly by the sample tool.

choose-codition-by-sampler.gif (325.1 KiB)

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Mia L commented · Jul 24 2020 at 2:09 PM

Thank you very much!

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Mia L commented · Jul 24 2020 at 2:19 PM

@joerg.vogel My model seems to be going over the limit I set with your help in the process flow. Is there a way to fix this?

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tannerp Mia L commented · Jul 24 2020 at 2:52 PM

You probably still need to add in the code to stop the model. I suggest you listen for the event where the sink's input value changes to 40 rather than rely on the Decide activity. Sometimes the token won't be in the Decide activity right when the value changes to 40, and it sounds like you don't want any delay. Here's an idea that uses an Event-Triggered Source and a Custom Code.

process-flow-circle_1.fsm

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input-change-trigger.png (9.7 KiB)

stop-model-code.png (4.8 KiB)

process-flow-circle-1.fsm (57.0 KiB)

Mia L tannerp commented · Jul 24 2020 at 3:07 PM

This helps a lot. Thank you!

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Joerg Vogel Mia L commented · Jul 24 2020 at 3:01 PM

You have probably already identified an answer how to set the correct value to get exact 40 items into the sink. You have to set the value in the condition in the decide activity to 39. You transport the items, then there is a difference until it gets into the sink.

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