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Eric Z2 asked Eric Z2 commented

How to remove 2 boxes every 30 seconds?

saaf-190301-a01.fsmVRC_2 needs function or trigger to remove 2 boxes every 30 seconds. Help!

FlexSim 19.0.0
conveyorflow itemssink
saaf-190301-a01.fsm (326.0 KiB)
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tannerp answered Eric Z2 commented

What happens when there are no boxes available? What about when there's only 1 box available? Does the time to remove the boxes count as part of the 30 seconds? I've attached an example that might help, but if you give more details we could potentially find something better.

30-seconds.fsm


30-seconds.fsm (330.9 KiB)
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Thank you for you fast response Tanner!

That is exactly what I was needing for the discharge end. Answers to your questions:

What happens when there are no boxes available? 2 totes will be fed every 30 seconds or 4 totes per minute. With the speed configurations we should always see product on the conveyor.

What about when there's only 1 box available? Number of product on conveyor should always be an even number.

Does the time to remove the boxes count as part of the 30 seconds? Yes, 30 seconds start when product arrives at the sink point.

What I would like to do next is feed (2) totes every 30 seconds. Next, looking from the discharge end I would like to have a photo-eye at the middle of the curve per attached screen shot. For example when photo-eye becomes blocked for 8 seconds conveyors upstream should shut off. Once photo-eye has become free for 120 seconds the conveyors upstream should start back up.

I've attached screenshot and simulations with minor changes.

Let me know if you still have questions.

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Hi @Eric Z2,

Sorry about the delayed response. I've been in the office less frequently lately. I've been toying with a little example model to try and get the code that would fit your criteria. It's tougher than I initially thought because of complications with "stopping" and "resuming" conveyors in general. I've got something that does 80% of what you need, it just doesn't resume properly. Maybe give it a look and see if it sparks any ideas for you.

Hopefully this isn't too late for a response. If you've already figured this out, then all the better!

Sample Model: conveyor-model.fsm

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conveyor-model.fsm (35.9 KiB)

Thank you Tanner!

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Up to 12 attachments (including images) can be used with a maximum of 23.8 MiB each and 47.7 MiB total.