Change a model variable or array variable's properties in the Simulation Manager
- Last UpdatedSep 10, 2025
- 3 minute read
You can update the following properties for an individual model variable or array variable in the Simulation Manager:
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Display Unit of Measure (UOM)
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Min value
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Max value
Change a model variable or array variable's display UOM
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In the Simulation Manager, expand the Main branch.
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Select the model variable or array variable that you want to update its display UOM.
AVEVA Process Simulation highlights the variable in the Simulation Manager.
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Place your cursor over the right-side of the variable name.
A dropdown icon
appears next to the UOM.

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Select the dropdown icon to display a list of UOMs, and then select a new display UOM for the variable.
AVEVA Process Simulation updates the variable to use the new display UOM. The variable's existing min and max values adjust to the new display UOM accordingly.
Change a model variable's min value or max value
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In the Simulation Manager, expand the Main branch.
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Right-click the model variable that you want to update its min value or max value, and then select Variable Properties.
The model variable's dialog appears.

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In Min or Max, update the existing values as you desire, and then press Enter.
AVEVA Process Simulation updates the model variable to use the new min and max values.
If the model variable does not have a value, you can enter a min value that is greater than the max value.
If the model variable has a value, an invalid badge appears next to the variable name if either of the following is present:
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The min value is greater than the max value.
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The model variable's value is out of the min and max range.
In the following example, the model variable FlowScale has a value of 1, a min value of 14, and a max value of 2. The min value is greater than the max value. Therefore, an invalid badge appears next to FlowScale, and the min and max values must be updated.

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Change an array variable's min value or max value
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In the Simulation Manager, expand the Main branch.
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Locate the array variable that you want to update its min value or max value, right-click its root variable name, and then select Variable Properties.

The array variable's properties dialog appears.

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In Min or Max, update the existing values as you desire, and then press Enter.
AVEVA Process Simulation updates the array variable to use the new min and max values.
If the array variable does not have a value, you can enter a min value that is greater than the max value.
If the array variable has a value, an invalid badge appears next to the variable name if either of the following are present:
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The min value is greater than the max value.
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The array variable's value is out of the min and max range.
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