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PeterHe avatar image
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PeterHe asked PeterHe commented

Conveyor buffer and last in first out



Empty Tote Buffer And Return.fsm1678352968317.jpg

20230309173520.png

Hi Everyone:

The empty Tote output from the secondconveyor to the "A" "B"conveyor Buffer.

I want to do three ations:
Action1:"A"and "B" area is the combiner's empty tote buffer.how to do?

Action 2 :The empty Tote is first transmitted to "A",when area "A" is full ,Tote is second transmitted to "B"

Action3: Empty tote in "B" area ,But "B" area tote output mode is "last in first out"

How can i finish the above , thanks in advance!


FlexSim 22.2.0
bufferlast in first outconveyor and combiner
5 |100000

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1 Answer

Jason Lightfoot avatar image
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Jason Lightfoot answered PeterHe commented

It sounds like you'll need to reverse your conveyor - you do that by setting the target speed property to the the negative of it's current value.

The coordination of this and the needs to start and stop the conveyor will probably be best done in a process flow.

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5 |100000

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

PeterHe avatar image PeterHe commented ·

@Jason Lightfoot

Hi Jason Lightfoot:

I am beginer, Do you have time to help me build a process flow?

Thanks

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Felix Möhlmann avatar image Felix Möhlmann PeterHe commented ·

Would it be an option to model the upper buffer as a push back rack instead?

That would eliminate the need to reverse the conveyor and simplify the release logic.

PushBackBuffer_fm.fsm

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Jason Lightfoot avatar image Jason Lightfoot ♦♦ PeterHe commented ·

It doesn't have to be a process flow - you may get some way using a single photo-eye and messages. I recommend you look for the conveyor related tutorials and APIs in the online help, and build small test models just to prove the concept before trying to apply it in your model. If you get stuck post it here and someone will help you with your current hurdle.

When I get a chance I will try to build an example for you but can't say when that will be.

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PeterHe avatar image PeterHe commented ·

1.pngbox last in first out.fsm

@Felix Möhlmann @Jason Lightfoot

Hi :

I used decide point to implement some of the functions.

But when i was doing LIFO is failed. what method should be used to solve this problem.

Thank you advance!

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1.png (928.5 KiB)
Jason Lightfoot avatar image Jason Lightfoot ♦♦ PeterHe commented ·

Here's a working example showing the principle of using a reversing conveyor with photoeye feeding two stations:

reversingbufferconveyor2.gif

reversingBufferConveyor.fsm


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PeterHe avatar image PeterHe Jason Lightfoot ♦♦ commented ·

Hi Jason:

You solved my problem very well

Thanks very much!

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