Downtime
LegacyHow this worked in the previous version
When you must execute a downtime logic when a downtime occurs.
Where to Find the Model Object
Section titled “Where to Find the Model Object”The following model object can be found in the model objects directory:
- Flow Control -Downtime
Difficulty Level
Section titled “Difficulty Level”- Ease of Use: Easy
- Ease of Modification: Moderate
How to Use the Model Object
Section titled “How to Use the Model Object”-
Open Your Model: Open your model or create a new blank model.
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Insert the Model Object into Your Model
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Locate the model object Downtime and select the insert button.
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Move the cursor to the point of insertion and left mouse-click. The upper left corner of the model object will be inserted at the location of the mouse-click.
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Connect to Your Model
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**Connect **a percentage route from your model to Process Station1.
- **Create **a percentage route from Process Station1 to the rest of your model.
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Define Values
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**Define **the values for scenario parameters s_MTTF_M1, s_MTTR_M1, s_Worker_Station1, s_TimeTrigger_1_is_onM1, s_CyclesTrigger_1_is_onM1, s_CyclesBeforeRepairM1, and **s_CyclesRepairTimeM1 **based on the information provided under the head Scenario Parameters below.
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Update Objects: Change the name of Process Station1 to what maybe appropriate for your model.
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Completion: The model object is now integrated into your model, you should now be able to save and then simulate the model.
Controls Usage
Section titled “Controls Usage”Attributes:
Section titled “Attributes:”- a_Time_In: Record the time when the entity starts processing.
- a_Proces_Time1: Run for the processing time assigned to an entity.
Variables:
Section titled “Variables:”- v_TTF_Run_TimeM1: Time for the machine to fail.
- v_CountM1: Counter so that the a distribution in the action logic is re-evaluated.
- v_MTTF_M1: Predicted time between failures.
- v_CyclesCntM1: Count the cycle number.
Scenario Parameters:
Section titled “Scenario Parameters:”- s_MTTF_M1: The time between failures (this may be entered as a distribution).
- s_MTTR_M1: The time to repair (this may be entered as a distribution).
- s_Worker_Station1: Enter the resource name used to perform the downtime.
- s_TimeTrigger_1_is_onM1: If set to one, this allows special logic downtimes triggered by time usage of the machine.
- s_CyclesTrigger_1_is_onM1: If set to one, this allows special logic downtimes triggered by cycles.
- s_CyclesBeforeRepairM1: The number of cycles required before a maintenance occurs (this may be entered as a distribution).
- s_CyclesRepairTimeM1: The time for maintenance if a cycle-based downtime occurs (this may be entered as a distribution).