Lukas Buchta avatar image
Lukas Buchta asked Kavika F commented

How to set conveyors preference and use buffer?

Dear Experts!

So I struggle with making A) restrictied zone logic and B) move from buffer to postion (1,2,3 or 4)

A) On the last part of my conveyor I have yellow operators 1,2,3,4 + buffer. The item always go to one of this workstations (visual control of the product). The item on the main conveyor block these yellow operators to send or recieve new item, so i want to make a logic with some restricted are - ,,if postions 1,2,3,4 and buffer are full, Then no item can enter this area".

B) The logic is: processed item fill position 1, then 2, then 3, then 4, then buffer. When some of positions (1;4) becomes empty, then item move from buffer to the new empty position (1;4)

I have only one process flow named ,,workstation" and i tried to use one logic with decision points, but failed.

Thank you very much for your help, or hints how to do it!



FlexSim 21.2.0
conveyorflexsim 21.2.0itemtyperestricted area
explain.jpg (101.0 KiB)
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1 Answer

Patryk avatar image
Patryk answered Kavika F commented

The best way to do it is using List. I created two logics first for A and B. To choose the logic A in global table "Logic" set 1 or 2 to choose the logic B.


I create new label on station "Type" to differentiate buffer from station


The process flow for both logic is similar. First stop pallet the pull form list Visual station then resume pallet and send to station. At the station on trigger "On contunue" push station to list.



In attached I send the model.


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Lukas Buchta avatar image Lukas Buchta commented ·

@Patryk thank you, thats a good hint. Just it is missing the ,,Logic" table. I can see just this and therefore the buffer and logic doesen't work i guess. logic.jpg

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Patryk avatar image Patryk Lukas Buchta commented ·

The problem was probably because they were entered on the list as soon as they left the station, not the area, and "Station20" formed a queue. Now free stations are Push to the list at the decision point "After_Station". In the logic on the label "Station" at tote, the selected station is entered.



zalohayama-autosave (2)_5.fsm

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Lukas Buchta avatar image Lukas Buchta Patryk commented ·

Thank you very much!

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