# How the string display works at run time

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

## Open graphic displays

When you open a display at run time, the application reads the Value connection value and updates the display based on the value.

## What is shown

- If the Value connection is unassigned, the display is blank.
- The application displays the number of characters (bytes) specified for the tag assigned to the Value connection. If a longer string is read from the connection, only the specified number of characters is shown.

## See also

Set up connections for the string display