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Configuring KPIs

In general, OEE calculation can be customized and therefore require the possibility to modify existing OEE KPIs and formulas.

Before starting “KPIs” configuration, it is recommended to read about preconfigured OEE Standard Formulas in the Chapter OEE Basics to understand all the formulas and an explanation of all expressions.

The table below defines KPIs, Auxiliaries, and Operands:

Name Definition
Operand Data that is either fetched from the IoT model or calendar entries
Auxiliary Mathematical function to calculate intermediate values
KPI Well-known functions

All defined KPIs, Auxiliaries, and Operands that can be modified are listed in the table below. Here, the defaults are provided in case any of the formulas are wrongly configured:

Name Type Editable Formula
Availability KPI Yes Availability
Performance KPI Yes Performance
Quality KPI Yes Quality
Availability Loss Operand Yes Availability Loss (Operand)
Performance Loss Auxiliary Yes Performance Loss
Quality Loss Auxiliary Yes Quality Loss
Good Parts Operand/Auxiliary Yes Good Parts
Rejected Parts Operand/Auxiliary Yes Rejected Parts
Total Parts Operand/Auxiliary Yes Total Parts
Total Time Auxiliary No No Formula
Planned Stops Operand Yes Planned stops from shift plan (operand)
Operational Time Auxiliary Yes Operational Time
Net Production Time Auxiliary Yes Net Production Time
Net Operational Time Auxiliary Yes Net Operational Time
Used Operational Time Auxiliary Yes Used Operational Time
Theoretical Output Operand Yes Theoretical Output (Operand)
Equipment Utilization Auxiliary Yes Equipment Utilization

User interface

In “KPIs” overview, you can perform the following actions:


① Navigates to the “Configuration” tab
② Edits the existing “KPI”
③ Navigates to the next step
④ Displays the current step


To modify the existing formulas, proceed as follows:

  1. From the navigation tab, click “Configuration” and select "KPIs".
  2. In “KPIs”, click click next to the desired KPI to modify the existing “KPIs” with a formula editor.
  3. In formula editor, change the formulas with the following options:
Option Description
( Open a bracket
) Close a bracket
+ Add another constant or operand
- Subtract another constant or operand
* Multiply another constant or operand
/ Divide another constant or operand
Constant Any decimal number, positive or negative
Operand Any entry from the provided dropdown list

Example 1: Modifying the existing operands or constants formulas

To modify existing operands or constants in formulas, proceed as follows:

  1. In the formula field, select the operand and click icon.
  2. Insert another constant or select a different operand, KPI, or auxiliary from the dropdown list.
  3. Modify the formula and it will be auto-saved.

Example 2: Adding the operations and constants or operands

To add further operations and constants or operands, proceed as follows:

  1. In the formula field, select one of the mathematical expressions “(,),+,-,*,/”.
  2. Click the “Constant” or “Operand” buttons.

Newly added operands or constants can be edited instantly. To change them later, select the operand or constant and then click icon.

Example 3: Delete constants or operands

To delete any operand, constant, or mathematical expression, proceed as follows:

  1. Select the item in the formula editor.
  2. Click the trash can icon icon.
    The application automatically validates if the formula is still in the proper format. If not, the following message appears:



  • If the formula is not in the proper format, the modifications will not be saved until the user resolves the problem.
  • Once a bracket “(“ is opened, it is required to close it with the following operation “)”
  • Once any of the mathematical operators +, - ,* or / is added, it is required to add either an operand or constant afterward. Otherwise, the formula will not be saved.
  • The changes will directly appear in the application.

Last update: January 22, 2024