How to turn off a processor?

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Felipe P2 asked Jul 15 2019 at 8:05 PM Joseph Gillespie edited Jul 16 2019 at 6:24 PM

How to turn off a processor?

@Joseph Gillespie i would appreciate if you could help me out here. If not, maybe another colleague can.

I am working with this model (attached) and I´m trying to turn off processor Chipera for a few hours (intermitent). So far, the way i tried to achieve this is to set hourly rate 0 in the process time. However, the processor ends up receving the flowitem and processing it at very slow rate.

What I need is the processor to finish processing the flowitem that had recevied last and stop receving for the next hour, and resume its normal activity afterwards.

To sum up, i would like to know how to turn off a processor for certain hours.

pp-100-ton-v2.fsm

Does anyone know how to configure this?

Kind regards,

Felipe

Software Version:

FlexSim 19.1.0

process flow agv network process time scheduled down

pp-100-ton-v2.fsm (82.9 KiB)

Answer 1 · 2019-07-15T21:58:23Z

Joseph Gillespie answered Jul 15 2019 at 9:58 PM Felipe P2 commented Jul 16 2019 at 5:59 PM

@Felipe P2

You can do this using a Time Table:

You can attach a time table to fixed resources and operators in order to have them exhibit down behavior following a specific schedule:

In this time table I set it up so that the marked hours are the hours when Chipera is down (doesn't accept or process items). To fill out this table I had to set "Snap To" in the top left corner to "1 hour" so that it Chipera would shut down exactly on the hour and turn back on at the right time as well.

I also had to make a few changes to the Process Time schedule on Chipera:

When Chipera would shut down with an item on it, it would process extremely slowly after resuming. I assume this is because it was using the 0 items per hour processing time. By changing 3:00-4:00 and 6:00-7:00 (the times right after Chipera shuts down) to 700 I was able to fix this problem.

Here's your model with a time table for Chipera: chiperaanswer.fsm

capture.png (9.4 KiB)

capture2.png (5.8 KiB)

capture3.png (3.1 KiB)

chiperaanswer.fsm (152.1 KiB)

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Felipe P2 commented · Jul 16 2019 at 12:47 PM

Hi Joseph, thank you very much for your collaboration. I hadn´t worked with timetables before on flexsim.

But i can still see that when the model you attached is running and Chipera is supposed to be shut down, the flowitem is processed at very slow rate. This affects the "Idle" percentage. Do you think it would be possible to finish processing that flowitem with the rate corresponding to the previous hour and then stop accepting flowitems? So that we avoid that really slow process and prevent the "Idle" percentage to be affected.

Thank you very much.

Kind regards,

Felipe

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Joseph Gillespie Felipe P2 commented · Jul 16 2019 at 2:35 PM

@Felipe P2

Chipera doesn't go into the "idle" state when it is shut down, it actually goes into the "Scheduled down" state. I've modified your "Estados chipera y logyard" chart to show Scheduled down, and you will see that Chipera spends the majority of its' time in "Scheduled down":

You can set the chart to show this by going to the Chart properties and setting scheduled down to "utilized":

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capture.png (10.6 KiB)

capture2.png (10.2 KiB)

Felipe P2 Joseph Gillespie commented · Jul 16 2019 at 5:59 PM

Oh I understand. Now it´s perfect. Thank you very much for your collaboration.

Kind regards,

Felipe

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