# How the numeric display works at run time

The numeric display shows the value of the Value connection at the data source. The application clears the display before showing a new value.

## Open graphic displays

When an operator opens a display at run time, the application reads the values of all assigned connections and updates the display based on these values.

## What is shown

- If the Value connection is unassigned, the numeric display is filled with asterisks (*).
- If the value, including the decimal point or minus sign, contains more digits than specified for the Number of digits option (in the General tab), the display is filled with asterisks (*).
- If the numeric display is sized so that the value cannot be fully shown (and the value including decimal point and minus sign, is within the configured number of digits for the display), any parts of the value that cannot be shown are truncated and the last displayable digit is replaced with an asterisk.
- If the value doesn’t fit on the first line of the display, and there is room for a second line, the value continues onto the second line.
- If the "Fill left with" option is None, and the displayed value is a floating point value between 0 and 1, a leading 0 is placed in front of the decimal point.
- If the number of places after the decimal point in the returned value is greater than the Decimal places value, the displayed value will be rounded off.

## See also

How values are shown

Set up connections for the numeric display