question

Roos_UTI avatar image
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Roos_UTI asked Roos_UTI commented

Box scanning capacity: max amount for box scanner/sorting (1 box/sec)

Hi,

Can I set a maximum amount on a DP (box sorting).

The actual scanner can only proces 360 items/hour, so it needs 1 second per box.

When there is more than 1 box per second the box should not be sorted.



FlexSim 24.1.0
decision points
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Jeanette F avatar image Jeanette F ♦♦ commented ·

Hi @Roos_UTI,

Thank you for contributing to our community! We couldn't identify a maintained license or subscription linked to your account.

You may need to update your profile information to identify yourself as a license owner or their associate. Check out our article for how to ensure you receive timely support. If you update your profile comment back to let us know - we'll adjust the priority of your post accordingly.

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Roos_UTI avatar image Roos_UTI Jeanette F ♦♦ commented ·
Hi Jeanette,


I can only change my e-mail or password in the link you send me. My license is under Talumnis. What do I need to do to verify?

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Steven Hamoen avatar image Steven Hamoen Jeanette F ♦♦ commented ·
@Jeanette F The company of Roos has a license that is currently under maintenance. uticon.com01
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Joerg Vogel avatar image Joerg Vogel commented ·

@Roos_UTI, you need to be precise. You want to skip items in an interval of ten seconds or do you want to keep an ratio of 360 items passing in an hour?

You reset a label value in an interval of 10 seconds by message, looped process flow or repeating custom event. When an item passes this decision point it will set a different value at your label. This value indicating that any other passing item is diverted to a different destination. Elapsed interval will reset label value, which allows a passing of a single item again.

A constant rate of 360 items allowed to pass, depends on a knowledge of average capacity of items in an hour. Otherwise you will let pass first 360 items and divert the rest of incoming items until an hour elapses..

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1 Answer

Felix Möhlmann avatar image
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Felix Möhlmann answered Roos_UTI commented

@Joerg Vogel mostly answered this in this comment. Though I think rather than resetting the ability to scan in a fixed interval, it should be based on the item since the last scan. Otherwise two items following each other closely could both the scanned when the reset cycle lines up correctly.

In the attached model, I set a label on the DP to the current time after an item is scanned (color changes and item is send to respective conveyor). Whenever an item arrives, the trigger code first checks this label and if the difference between it and the current model time is less than one second, ends the code execution before any of the other things happen by returning a 0 (Code Snippet).

scan-rate-limit-fm.fsm


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Roos_UTI avatar image Roos_UTI commented ·

Exactly what I need thanks!

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