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Rohan V3 avatar image
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Rohan V3 asked Ben Wilson commented

Slug Build with Area Restriction and Merge Controller

M1 is just a test merge, M2 is what I want to do.

M1/M2 -> When I try to connect merge controller with the process flow, I get the following error:

The merge (M1) works perfectly with merge controller 3.

M2 -> I want to have a slug build where the items are stopping with gaps (see below image). The slug readiness should be based on item count. the slug build doesn't seem to work in this case. Am i missing something?

Model: TNS_3_1_Merge_v1_4.fsm

FlexSim 21.0.4
merge controllerflexsim 21.0.4gap optimizerslugbuilder
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Rohan V3 avatar image Rohan V3 commented ·

Requesting to get this resolved today. Thanks!

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Ben Wilson avatar image Ben Wilson ♦♦ commented ·

Hi @Rohan V3, was jason.lightfoot's answer helpful? If so, please click the red "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

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Jason Lightfoot avatar image
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Jason Lightfoot answered Jason Lightfoot commented

Is that merge controller from 21.0.3? Try removing it and adding a new one from 21.0.4.

Or change the LaneManagement initLabels for these two labels:

Also can't you define the stopping space for the items instead of using all those DPs?


1617993075089.png (6.8 KiB)
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Rohan V3 avatar image Rohan V3 commented ·

Hi Jason, thank you for your answer. The merge controller process flow issue was solved by adding a new one from 21.0.4. As for the stopping distance, it will vary based on the package length. The DPs are there to simulate buffer zones of 3' length.

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Jason Lightfoot avatar image Jason Lightfoot ♦ Rohan V3 commented ·

There are options for fixed distances and package length based distances and combinations thereof which should meet your needs.

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Rohan V3 avatar image Rohan V3 Jason Lightfoot ♦ commented ·

@jason.lightfoot Below image describes the issue. if packages are 29" in length back to back, gap is 36-29 = 7".. if there's a 20" package in front, the gap becomes 36-20 = 16". There will be infinite such combinations.That's the reason I am using DPs. How do I simulate this except for the DPs? Also, once the packages are clear to merge, there's a small delay. So after first package moves, there's a delay and then only the second package moves. The issue is when I try to use merge logic with the DPs, it doesn't work because I think its not considering a 'slug' has been built.
I talked to @Logan Gold on the phone regarding this and he is looking into it. But if you can provide a solution, that's great!

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Rohan V3 avatar image Rohan V3 commented ·

@jason.lightfoot thanks for this! This almost works, except for the scenario where an item length is greater than 1m. I have added dummy PEs at 1m length to illustrate this: Item 2 should stop at PE 2 instead of PE1. Is there a solution for this?

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1618593946900.png (111.8 KiB)
Jason Lightfoot avatar image Jason Lightfoot ♦ Rohan V3 commented ·

Probably not using prebuilt functions - you'd have to code everything yourself.

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