Overview

The Metric Definitions form allows each customer to fine tune the calculations used for some standard metrics.  The calculation is shown in bold within each Metric section, then specifics can be specified altering the definition of some of the variables within the calculation.

Utilization

The calculation for Utilization is:

       Utilization = Actual Run Time / Total Time

The definition of Actual Run Time and Total Time can be specified using the check boxes.

Default Cycle Status for Actual Run Time: Scytec DataXchange supports the use of multiple definitions for Cycle Time. Either the General In Cycle definition can be used or a combination of Normal, low, and High override.

Use Defined Shift as Total Time: Setting this option to True uses the defined shifts for the calculation of total time. The Defined Shift as Total time is intended to be used when planned downtimes are entered by the operator during the shift, and non-shift hours are recorded as Unknown Downtime. 

Subtract Planned Downtime from Total Time: Setting this option to true subtracts any planned downtime that has occurred from the total time.

Subtract Unplanned Downtime from Total Time: Setting this option to true subtracts any unplanned downtime that has occurred from the total time.

Subtract Unknown Downtime from Total Time: Setting this option to true subtracts any unknown downtime that has occurred from the total time.

OEE Options and Configuration Definitions

Details on the OEE calculations can be found on the OEE Calculations page.

Use Defined Shift as Total Time:  Setting this option to True will use the current defined shift time to calculate the total time.

Limit Performance to 100%:  Setting this option to True will allow reporting metrics not to exceed 100%.

Ideal Cycle Times

Calculate Ideal Times from Previous Data:  Setting this option to True will automatically calculate the Average Ideal Cycle Times from historical values.

Cycle Status for Ideal Time:  Setting this Value will define what Cycle Status will be used for the Ideal Cycle Times. (General In Cycle is default) 

Ideal Setup Times

Calculate Ideal Times from Previous Data:  Setting this option to True will automatically calculate the Average Ideal Setup Times from historical values.

Planned Downtime for Ideal Time:  Setting this Value will define what Planned Downtime will be used for the Ideal Planned Downtime Times. (General Planned Downtime is default)

Additional OEE information

If you are defining your downtimes outside of a shift as a planned downtime such as 'No Shift' instead of using 'Unknown downtime'

The “Subtract Planned Downtime from Total Time” is intended to be used when planned downtime are entered by the operator during the shift, and non-shift hours are recorded as Unknown Downtime. 

In this case though, planned downtime is already being entered in for the non-shift time.  Therefore, when using shift times as total time and subtracting planned downtime from the total time the planned downtime during non-shift hours is being take out twice. 

There are two ways to solve this.  If it’s left to have both items set to true on the Manage form as it is was initially then you must select the Shift filter when running the chart. 

The other solution is to set “Use Defined Shift as Total Time” to False since this time is already being accounted for as Planned Downtime. (recommended solution)

Parts Per Hour

Allows you to remove the selected Planned Downtime from the parts per hour calculation.

Display As

Allows you to toggle the Ideal operation time for parts in minutes or hours.

Setup Times

Allows you to select Planned Downtimes or Unplanned Downtimes as your setup time resulting in an Actual Setup Time. The Actual Setup Time calculation will be the amount of downtime that has occurred based on the downtimes marked as Setup Times.

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