how to make the forklift grab a pallet from the upper levels of the rack and place it in the first or second l

someone ask me this question
“What I would like to know is how to make the forklift grab a pallet from the upper levels of the rack and place it in the first or second level.”
i made a model,i write code in userevent,and repeat every o.1,more deail see attach.

is there a simple method?

Linweixu,

I do not quite understand why you would want to do this based on the time (user event). In any case you will have to make a task sequence such as the one you have made. But maybe you can use the Minimum Dwell time on the rack. In this case you avoid having to go over the entire content of the rack each time searching for items that have to be ""brought down". On this trigger you already have a pointer to the corresponding item. So when this time expires you can change the label on the item and make the task sequence.

Good luck,

Rachid Kolfin

LINWEIXU,

why do you do that checking time based? In general, you will always have some control logic for a rack, e.g. a WMS (Warehouse Management System).
If this receives an order, it has to create the tasksequence you put into the user event. You need to model that logic in Flexsim too, not only the "hardware" meaning the rack.

Good luck

ralle
aka
Ralf

BTW: "1234.fsm" is not a pretty good name for a model if you still want to know tomorrow what the model was about

This example creates a task sequence when the part enters the rack.

I'd agree with the others that you really want something else creating the task sequence for the part.

Anthony

Linewixu,

Do you always have to move the items from the top rack to one of the lower two levels? If you do then I would suggest using two different racks with one on top of the other. If you did it this way then you would not have to write any special code at all.

Good Luck,
Brandon

Brandon Peterson thank you good ideal