NAiS GT Series Technical Manual page 170

Changing the backlight color
The A and B bits of the initial bit device word are used to turn the backlight on and off. These bits can be
changed to change the backlight illumination status. To make these settings valid, however, Bit D
(Backlight Valid flag) must always be turned on at the same time.
Bit status
B
OFF
OFF
ON
ON
Using a flashing backlight
Bit C of the first word of the bit device is used to make the backlight flash. The backlight status can be
changed by turning this bit on and off. To make this setting valid, however, Bit D (Backlight Valid flag)
must always be turned on at the same time.
Bit status
C
OFF
ON
Making the buzzer sound
Bit F of the first word of the bit device is used to make the buzzer sound. The buzzer status can be
changed by turning this bit on and off.
Bit status
F
OFF
ON
Data Input in Progress flag
With the GT30, while data is being input from the screen keyboard part, Bit 0 of the third word of the bit
device is on.
Applications should be set up so that, when this bit is on, the screen cannot be chagned from the PLC.
6-10
Backlight color
A
OFF
ON
OFF
ON
Backlight color
Buzzer status
Buzzer output
Off
Lighted
Lighted
Flashing
Stopped