question

Payal Patel avatar image
0 Likes"
Payal Patel asked Steven Hamoen commented

Why does queue/conveyor movement is not working per time of the day schedule

Hi,

I am trying to move pallets from the queue(Wet/Dry Cooler) to the outbound conveyor per timetable(e.g. 2 pm - 2 am). So I used "Send to Port" > "By Time of Day" functionality for the output of the queue and there is only single output port 1 from the queue so defined the timetable accordingly like putting "1" against 2 pm - 2 am time, while putting "2"(port number which doesn't exist -- so movement should be stopping during that time) against 2 am - 2 pm time.

Then when I run attached simulation model, outbound conveyor is functional only between 2 pm - 10 pm and after 10 pm movement is stopping even there are items in the queue to be sent out. So I am not able to understand why flow control is getting stuck. I would appreciate any help, thanks!

project2.fsm

FlexSim 21.0.3
flexsim 21.0.3shift scheduletimetablequeue controlconveyor entrytransfer
project2.fsm (179.6 KiB)
5 |100000
Toggle Comment visibility. Current Visibility: Viewable by all users

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

1 Answer

Steven Hamoen avatar image
1 Like"
Steven Hamoen answered Steven Hamoen commented

@Payal Patel What happens that if a product enters a queue and given an exit it wants to go out that exit no matter what. So in your case all the products produced until 2 pm have an exit of 2 and will never leave because that exit doesn't exist.

I would use a timetable (Toolbox) and use the "close output" option on the down function and "resume output" on the resume function.

· 7
5 |100000
Toggle Comment visibility. Current Visibility: Viewable by all users

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

Payal Patel avatar image Payal Patel commented ·

Thank you, @steven.hamoen. I have already tried a timetable(Toolbox) option too and it doesn't seem to work.

0 Likes 0 ·
Joerg Vogel avatar image Joerg Vogel Payal Patel commented ·

Yes, it does work on Objects but not on systems like conveyors. On Conveyors it works with the entry / exit transfers, those are objects. Then you can stop or resume the input or output, but not the default setting stop and resume object. Alternatively you can close and open the input or output.

EDIT: You do this in the timetable Functions On Down and On Resume. If your conveyor system is driven by Conveyor Motor objects you can stop them.

1 Like 1 ·
Payal Patel avatar image Payal Patel Joerg Vogel commented ·

@Jörg Vogel thank you, tried setting attached timetable on objects entry transfer for the conveyor(and queue) but neither of approach worked and same issue. Basically pallets get moved with first available slot and it's not following the timetable.

0 Likes 0 ·
screen-shot-2021-04-05-at-110533-pm.png (144.9 KiB)
Show more comments