Auto update operator capacity

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Truc C asked May 11, '23 Truc C commented May 11, '23

Auto update operator capacity

Hi all,

My model have 4 processor, I want to pull in batch size = 20 of Queue 1 to In 1-4 in one time, so I set Operator capacity = 20.

But then I want this operator do alternate processor 1-4.... means operator need to pick 1 object in , do in processor 1, then pick 1 in In2, do processor 2,...

so how can I change the capacity of operator to 1? cause if i set capacity = 20, the operator will pick 4 object, release at 4 processor and then do for each processor.

Hope anyone can help.

Change op capacity.fsm

Software Version:

FlexSim 22.1.4

operator capacity change

1683787066929.png (183.0 KiB)

change-op-capacity.fsm (32.7 KiB)

Answer 1 · 2023-05-11T08:09:17Z

Felix Möhlmann answered May 11, '23 Truc C commented May 11, '23

You don't have to change the capacity for this. In fact if I assume correctly that the operator is supposed to first do the setup before moving on to the next item and processor, that wouldn't get you all the way there.

You can control (to some degree) how the operator can use the available capacity with the Break To option. If you set it to Same Load Station, the operator will not travel to another queue to pick up more items, even if he has free capacity.

Furthermore, to control in which order pending tasks are done, give the tasks different priorities and preempt values. The setup tasks for example have to be able to preempt other tasks, because the operator will have already started the next transport task sequence when the setup tasks is queued up.

change-op-capacity-fm.fsm

For completeness: A good place to change the capacity would be the On Load trigger. There you can change the capacity depending on the station that the item was loaded from.

if(station == Model.find("Queue1"))
{
    current.setProperty("Capacity", 20);
}
else
{
    current.setProperty("Capacity", 1);
}

change-op-capacity-fm.fsm (34.7 KiB)

· 3

Truc C commented · May 11, 2023 at 09:04 AM

Hi Felix,

Thanks for your answer. I have one question is if I set the operator cap = 72, it will take time to release each pcs, is there any way to release all 72 pcs in 1 time?

0 ·

Felix Möhlmann Truc C commented · May 11, 2023 at 09:49 AM

I'd push the task sequences that the queue generates to a list first. This allows you to pull them off the list ordered by the unload station and dispatch them to the operator in that order.

(You could also code this behaviour in the operator's Queue Strategy but that would be quite a bit more work)

If the operator should not walk to the individual dropoff locations but only to the queue and then drop all items at the same time, set him to not do offset travel.

change-op-capacity-fm_1.fsm

0 ·

capture1.png (3.4 KiB)

change-op-capacity-fm-1.fsm (41.6 KiB)

Truc C Felix Möhlmann commented · May 11, 2023 at 09:57 AM

yeah, I did it

Thank you so much! Have a nice day!

0 ·

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