# Remote Backlight Intensity

Assign a tag, expression, or direct reference to this read-only connection. At run time, the application reads the value at the data source and sets the backlight to a percentage of its maximum intensity corresponding to the value. For example, if the value of the connection is 75, the backlight will be set to 75 percent of its maximum intensity. This value will override the terminal's own backlight intensity setting.

If the value of the connection is 100 or greater, the backlight will be set to its maximum intensity. If the value is zero or less than zero, the backlight is set to its minimum value, that is, it will be turned off. The lowest intensity at which the backlight is still on is one percent.

Setting the backlight to zero percent is not recommended, for two reasons:

- This setting overrides the PanelView Plus terminal's screen saver. A user may try to bring the terminal out of screen saver mode, but will see nothing on the display because the backlight is turned off.
- This setting is retained when the terminal is turned off. When the terminal is turned on again, the display will remain dark.

In both these cases, it may seem that the terminal is damaged or in an error state, when it is really fully functional.

Tip: | The PanelView Plus terminal includes a backlight temperature control that overdrives the backlight when below 10C (50F) and reduces intensity to at least 40 percent when above 55C (13F). That control will override the setting assigned in this global connection. This connection does not work on a Windows 7 SP1, Windows 10, Windows Server 2008 R2 SP1, Windows Server 2012, or Windows Server 2016 operating system.

## See also

Set up global connections - Backlight tab