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Cody Barniak avatar image
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Cody Barniak asked Jacob Gillespie commented

Forklift not transporting

Hello everyone,

I run the model that is attached to this post but I noticed neither forklifts are being used to transport items from storage areas downstream to docking area to than be transfered to production.

I've tried connecting center points, calling directly to a resource and with dispatcher but nothing seems to work . My intention is to measure loaded-distance traveled by forklifts but they are not moving during picking process so my dashboards are not providing correct info.

Picking process is done using process flow and a global table to do picking.

Appreciate all suggestions.

Cody

FlexSim 7.7.4
FlexSim 7.5.4
transporterpicking
modelo-propuesto-dias-corregido.fsm (2.0 MiB)
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Sam Stubbs avatar image Sam Stubbs ♦ commented ·

I'm confused, it does seem like your transports are moving. They take pallets to the "Alm" sections. Then it looks like you have your TaskExecuter taking the pallets from the Docking Area to several queues elsewhere. Unless are you asking how to get your transporters to move items from the "Alm" sections into the Docking bay? If so you'll need to do that with Process Flow, since right now you are using the "Move Object" activity to move them, instead you can use a Load and Unload activity in conjunction with an Acquired resource referencing your Transports. Other than that. It does look as if your transports are moving items.

One thing I noticed however, was that at 8:57:15 PM on Wed Mar 2017 in your model, the model stops because it looks like your Transporters are trying to load an item into "Alm Azucar" at bay/level 0/0 (which obviously doesn't exist) so it's giving you an error and stops your model. You might want to investigate the

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Cody Barniak avatar image Cody Barniak commented ·

Hi @Sam Stubbs , yes, that is what I'm trying to do, to get the transporters to move flowitems from storage areas (i.e. Alm Azucar) to the docking area. I added the changes you suggested but im getting several task errors.

load-unload-model.fsm

Thanks for your help.

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load-unload-model.fsm (2.0 MiB)

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Sam Stubbs answered Jacob Gillespie commented

In order to accomplish the Load and Unload tasks, you were very close to get everything you needed to get it working, but you were missing a few things. You needed to add a resource that could be acquired and released. In this case I made the Resource be a reference to your Dispatcher. You also needed to have a network node path connected to your Docking Area, so I created one. And finally in the Load/Unload subflow section, you had the labels all set up correctly, but you forgot to assign the "item" label as the "creationRank" index of the array. So your model was having issues referencing the different items. I fixed those issues, and am reposting your model below.

load-unload-model2.fsm


load-unload-model2.fsm (100.5 KiB)
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Cody Barniak avatar image Cody Barniak commented ·

Thanks @Sam Stubbs . Your changes fixed the issues and others I had in the model. One change if you could help me out with. I noticed the transporters are only being used to move brown pallets from "Alm Carton" to docking area. Though I wish to move all items from its storage area to docking area. I tried adding several items to the station in the load activity of the process flow without much success. Any advice how this could be done?

Thanks

Cody

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Sam Stubbs avatar image Sam Stubbs ♦ Cody Barniak commented ·

I'm not sure I understand your model well enough to know what you mean. It looks like the only pallets in Alm Carton ARE brown pallets. I don't see any other color pallets in the model until the blue pallets are coming into Alm Azucar on Thu 5 Jan 2017. But the transporters do move the blue pallets from Alm Azucar, so I'm not sure I understand the problem.

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pallets.png (349.1 KiB)
Cody Barniak avatar image Cody Barniak commented ·

You are right, It was just to fast I kept missing the movement. Works great!

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