How to make a MTBF follow a Time Table?

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Marcello Rosadini asked May 30, '17 Marcello Rosadini commented May 31, '17

How to make a MTBF follow a Time Table?

In this sample model, we have a robot that, for example purposes fails every day at 10:00 am for 30min. When it fails it should call the operator for repair.

Production happens only from Monday to Friday and the schedule is set up by the Time Table

The problem I'm facing is that during the weekends the robot shouldn't be working, however the MTBF is triggering a failure and hence calling the operator (which is stopped). This produces that the robot stays in a waiting for operator state for most of the weekend and skews it's stats significantly.

I'm aware I could remove the waiting for operator state change in the "Stop Object and Call Operators" picklist, however it is an important stat during the week.

Is there a direct way to prevent the MTBF to be applied during the non operational time according to a time table?

Thanks

@javier EGA

Software Version:

FlexSim 17.1.2

mtbf mttr states time table

timetable.fsm (30.9 KiB)

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Marcello Rosadini commented · May 30, 2017 at 10:33 AM

@Javier EGA

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Answer 1 · 2017-05-31T08:15:10Z

Mischa Spelt answered May 31, '17 Marcello Rosadini commented May 31, '17

There are two options.

First of all, you can make an MTBF/MTTR apply only when the object is (not) in a certain state. So during the week, your robot is idle or travelling offset, while on the weekends it's scheduled down. Using the Breakdowns tab you can specify that you only want the event to apply in the former states:

The second option is, if you don't have any variability in your MTBF at all, just use a Time Table for the breakdown. Unfortunately there is no "Stop Object and Call Operators" pick option in its Down Function, but you should be able to copy/paste it fairly easily from the MTBF/MTTR using the Script buttons (little yellow scroll icons) to the right of the trigger fields.

breakdown-states-only.jpg (42.6 KiB)

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Marcello Rosadini commented · May 31, 2017 at 01:02 PM

Thank you very much Mischa. Both are good solutions in this case and we actually realized the posibility of applying the MTBF to those states only a few minutes after posting the question!
Thanks!

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