Either of the following actions can cause this error:
To correct this error, right-click the unit label of the unit you want to change on the front panel. Select Unit from the shortcut menu to display the Compatible Units dialog box. Select a more appropriate unit in the Common Units section of the Compatible Units dialog box, then select a unit in the Compatible Units section of the Compatible Units dialog box. Click OK to change the units to your selection.
It is best to wire physical numbers only to other compatible physical numbers. Choose one of the following options to correct this error:
To add units, right-click the pure number and select Visible Items»Unit Label from the shortcut menu. LabVIEW creates a unit label for the display. Type the name of the unit you want to add.
To remove units, double-click the unit label with the Labeling tool and press the <Delete> key.
To convert a pure number to a physical number or vice versa, use the Convert Unit function, shown in the following illustration. The Convert Unit function is located on the Functions»Numeric»Conversion palette.
If the input to this function is a pure number, Convert Unit adds the specified unit to create a physical number. If the input is a physical number, Convert Unit converts the number to the specified unit and removes the unit, to create a pure number. Make sure that the unit of the input is compatible with the specified unit. Refer to the following examples:
Example 1 - Changing a physical number to a pure number
Notice that the function converts the number from kilometers to meters first.
Example 2 - Adding a unit to a pure number