# Configuring Scan Rates

Interface that displays the configured scan rates (periods at which external variables read device address values).

If necessary, using this interface you can change the value of configured scan rates.

Note: For information about scan rates, refer to the following.
Setting the Interval for Reading External Variable Values (Scan Rate)

To configure scan rates:

1. On the display unit, open the Hardware Configuration screen.
2. To the right of the [Scan Rates] field, touch the ellipsis [...] to display configured scan rates.
3. Touch a scan rate value to display a keypad, which you can use to enter the new scan rate.