This function block is used to modify the backlight setting of the display. This can change the brightness of the screen toward a darker or lighter display.
A brightness value in percent can be assigned to the SetVal input. The output ActVal will show the currently set value. The output Err will show an error number.
|Brightness value to set in [%]
|Actual brightness value in [%]
|The board could not be accessed.
|The current brightness value could not be read.
|The brightness value could not be set.