Omron Programmable Terminals NT631 Setup Manual page 206

System Maintenance
Backlight Brightness
Adjustment (for NT631C-
ST141@-EV@ only)
Reference:
Setting Using Brightness and Contrast Adjustment Screen
Display screen number 9030 using either a touch switch with switch screen
function, or by specifying the display screen in the PT status control area.
The NT631C-ST141@-EV@ allows the brightness of the backlight to be
adjusted in 3 steps. The BRIGHTNESS ADJUST screen enables you to make
the adjustment while actually checking the brightness on the screen.
In the NT631C-ST153@-EV3, adjustment is not possible even though this
screen is displayed.
Adjust the contrast with the touch switches in
the right half of the screen.
[ ]: Increase 10 steps
[ ]: Increase 1 step
[ ]: Decrease 1 step
[ ]: Decrease 10 steps
Press Quit.
The contrast is set, and the NT631/NT631C
returns to the previous screen.
Section 6-11
189