resend items to multiprocessor and process it with different process time ?

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Kamal Patel asked Aug 22, '23 Jeanette F commented Aug 25, '23

resend items to multiprocessor and process it with different process time ?

Hello everyone,

I have attached the model, Its a model with sequence of operations and some sequences are repeated and I am trying to process those sequence without adding new processors. For eg, you would see that CNC Horiz has three processes and after the process is done it flows down to Man SFTLTH and needs to be sent back to CNC Horz but now its has different process time, this is just one of the example, likewise there are multiple cases where items needs to flow back and forth in the processing sequences. I am trying to figure of how to do that ?

Your help is greatly appreciated.

Thanks

Software Version:

FlexSim 23.2.0

processs flow manufacturing 3d models

part-model.fsm (32.6 KiB)

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Jeanette F ♦♦ commented · Aug 25, 2023 at 09:50 PM

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

If we haven't heard back from you within 3 business days we'll auto-accept an answer, but you can always comment back to reopen your question.

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Answer 1 · 2023-08-22T06:45:35Z

Felix Möhlmann answered Aug 22, '23 Kamal Patel commented Aug 22, '23

Generally, I would recommend to add a "Step" label to the items (the name is of course just an example). This can get incremented in On Process Finish or On Exit triggers and controls the process time, where the item is send and possibly other things too.

1692686668171.png (15.3 KiB)

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Kamal Patel commented · Aug 22, 2023 at 04:11 PM

The image show the squence of operation and work hour distribution. Now even if I implement the above solution that is just one iteration of sequence ( 3 - 4 - 5 ), after the item is processed in MAN SFTLTH it need to pass through CNC Horz again with sequence ( 7-8-9) with different Avg. Hours. How can I implement that ?

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flexsim.jpg (40.7 KiB)

Jason Lightfoot ♦ Kamal Patel commented · Aug 22, 2023 at 04:38 PM

If you have all the data in tables - and especially if there's a lot of it - then instead of entering this data into process time triggers you can read it from the data source.

If you're experimenting with the number of machines, then you may not be able to read from the data for a machine that doesn't exist. For that (and other) reason(s) I would probably place a subset of the data relevant to the machine as a label table or label map on the machine and read the correct value from that, keyed on the part number and operation/sequence number. I'd do this by running a script - there are examples on this site which we encourage students to use to lookup and try, and use the contributors for guidance.

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Kamal Patel Jason Lightfoot ♦ commented · Aug 22, 2023 at 07:12 PM

Thank you ! I will go through the examples on the site.

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Felix Möhlmann Kamal Patel commented · Aug 22, 2023 at 04:41 PM

You set the Values by Case up for each process step. Process 1 has the values 3 and 7, process 2 has 4 and 8 and process 3 uses 5 and 9.

Then also send the item through different output ports depending on which value the label has at that point (6 or 10).

Look at the (multi-)processors' triggers in the attached model. (I disconnected the lower of processors for now, so they don't disturb the item flow.

part-model-fm.fsm

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part-model-fm.fsm (33.0 KiB)

Kamal Patel Felix Möhlmann commented · Aug 22, 2023 at 06:57 PM

Thank you ! I now understand the increment process.

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