GT10/GT30
How the Various Functions Are Used
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7.2 Basic Communication Area to PLC and Bit Device Functions (GT10)
Changing the backlight color
Bits A and B of the first word of the bit device are used to change the backlight
color. The color of the backlight can be changed by turning these bits on and off.
To make these settings valid, however, Bit D (Backlight Valid flag) must always
be turned on at the same time.
Bit status Backlight color
B A
OFF OFF
Off
OFF ON
Green
ON OFF
Red
ON ON
Orange
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 turningthisbit 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 Backlight status
C
OFF
Lighted
ON
Flashing
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 Buzzer status
F
OFF
Stopped
ON
Buzzer output
Data Input in Progress flag
With the GT10, while data is beinginput from the screen keyboard part, Bit 0 of the third
word of the bit device is on.
Applications should be set up so that, whenthis bit is on,the screencannot be changed
from the PLC.
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