How to stack sequence in a rack by level with more than one rack?

Question

question

Victoria M2 asked Jul 22 2020 at 3:55 PM Victoria M2 commented Jul 22 2020 at 6:58 PM

How to stack sequence in a rack by level with more than one rack?

I have found this code below which stacks by level:

Storage.system.findSlot("WHERE slot.slotItems.length < 1 ORDER BY slot.levelID ASC")

I can't get it to work if I have more than one rack in the model!

Can anyone help me?

twoRacks.fsm

Software Version:

FlexSim 20.0.3

rack flexsim 20.0.3 sequence

tworacks.fsm (41.5 KiB)

· 1

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Answer 1 · 2020-07-22T16:57:12Z

Joerg Vogel answered Jul 22 2020 at 4:57 PM Victoria M2 commented Jul 22 2020 at 6:58 PM

I deactivate pull option in rack objects. I assign slots in On Creation Trigger of one source and deleted the second one. Now the Send to Port function gets executed the item has already got a slot assigned. I need to get the ouput object of the rack connected to the source to divert the item to the right rack where the slot is assigned to.

fill_rack_system_by_level.fsm

The ORDER BY clause defines now how the levels, bays and slots gets items into the rack:

Alternating rack, bay, slot starting with first level:

"WHERE slot.slotItems.length < 1 ORDER BY slot.levelID, slot.bayID, slot.slotID ASC "

fill-rack-system-by-level.fsm (46.6 KiB)

· 6

Joerg Vogel commented · Jul 22 2020 at 5:03 PM

How to stack sequence with more racks? Quite simple answer a slot must be assigned before the item enters a rack! Then you must evaluate, where the slot is in your warehouse to send it to the right rack object.

If you want to understand where the source codes are:

Source: Trigger Tab> On Creation Trigger > assign a slot
Source: Flow Tab > Send to Port Function > get output port number

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Victoria M2 commented · Jul 22 2020 at 5:09 PM

It only works if I have one source??

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Joerg Vogel Victoria M2 commented · Jul 22 2020 at 5:25 PM

No, it works with more sources, too. You must enhance the findSlot query to limit or identify the racks that are connected to the source!

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findslot-limit-storage-objects.png (20.3 KiB)

Victoria M2 Joerg Vogel commented · Jul 22 2020 at 6:58 PM

What if I use other object to link the source and the rack?

What trigger should I use??

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Joerg Vogel Victoria M2 commented · Jul 22 2020 at 5:39 PM

attached optimized model!

twoRacks_Fill_levels_first.fsm

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tworacks-fill-levels-first.fsm (42.6 KiB)

Victoria M2 commented · Jul 22 2020 at 5:38 PM

Thank you very much!!

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