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 |
---|---|---|---|
OEE | KPI | Yes | |
Availability | KPI | Yes | |
Performance | KPI | Yes | |
Quality | KPI | Yes | |
TEEP | KPI | Yes | |
Availability Loss | Operand | Yes | Availability Loss (Operand) |
Performance Loss | Auxiliary | Yes | |
Quality Loss | Auxiliary | Yes | |
Good Parts | Operand/Auxiliary | Yes | |
Rejected Parts | Operand/Auxiliary | Yes | |
Total Parts | Operand/Auxiliary | Yes | |
Total Time | Auxiliary | No | No Formula |
Planned Stops | Operand | Yes | Planned stops from shift plan (operand) |
Operational Time | Auxiliary | Yes | |
Net Production Time | Auxiliary | Yes | |
Net Operational Time | Auxiliary | Yes | |
Used Operational Time | Auxiliary | Yes | |
Theoretical Output | Operand | Yes | Theoretical Output (Operand) |
Equipment Utilization | Auxiliary | Yes |
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
Procedure¶
To modify the existing formulas, proceed as follows:
- From the navigation tab, click “Configuration” and select "KPIs".
- In “KPIs”, click next to the desired KPI to modify the existing “KPIs” with a formula editor.
- 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:
- In the formula field, select the operand and click .
- Insert another constant or select a different operand, KPI, or auxiliary from the dropdown list.
- 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:
- In the formula field, select one of the mathematical expressions “(,),+,-,*,/”.
- 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 .
Example 3: Delete constants or operands¶
To delete any operand, constant, or mathematical expression, proceed as follows:
- Select the item in the formula editor.
-
Click the trash can icon .
The application automatically validates if the formula is still in the proper format. If not, the following message appears:
Note
- 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.