OEE Parameters Calculation for Standard Units

The classic OEE mode approach to the OEE calculation for standard units measures the performance and quality losses in terms of loss of production availability or productivity that are attributed to the performance and quality, respectively.

The classic OEE modes are Standard, None, Long Running 840D, and Long Running EDM are defined for a Production Unit in Plant Applications Administrator. The OEE calculation formula for all these modes are same.

The OEE parameters Availability, Performance, and Quality for the standard Production Units are calculated based on the formula described in the following table.
OEE ParameterCalculation Formula
AvailabilityAvailability = Net availability run time/Planned production time

Where, Net availability run time = Planned production time - Availability downtime

PerformancePerformance = Actual production/Target production
Where,
  • Actual production is the actual productivity of the Unit
  • Target production is the potential productivity of the Unit
QualityQuality = Net production/Actual production
Where,
  • Net production = Actual production - Waste
  • Actual production is the actual productivity of the Unit
  • Waste is the amount of rejected products

Classic-Mode OEE Parameters Calculation

In this example, the value for each OEE parameter per day for a bottle manufacturing plant is as shown in the following table.
InputsValue
Planned production time24 hr
Availability downtime1 hr
Actual production900 bottles
Target production1000 bottles
Waste100 bottles
The following table provides the value of each OEE parameter calculated based on the formula described in the earlier section.
OEE parameterParameter valueFormula usedExplanation
Availability23/24 = 0.125Availability = Net availability run time/Planned production time.Planned production time = 24 hr

Availability downtime = 1 hr

Net availability run time = 24 - 1 = 23 hr

Performance900/1000 = 0.9Performance = Actual production/Target productionActual production = 900 bottles

Target production = 1000 bottles

Quality800/900 = 0.8889Quality = Net production/Actual productionActual production = 900 bottles

Waste = 100 bottles

Net production = 900 - 100 = 800 bottles