Backlight Off Function - Omron NT20S-ST121B-EV3 User Manual

Various System Settings
Note
3-8-3

Backlight OFF Function

Turning ON the Backlight
Setting the Backlight OFF Function
To set and quit the menu, press the [WRT&EXIT] touch switch. To quit without
setting, press [Quit].
• OFF: The buzzer will not sound at all during the operation.
• When "ON" is set, the buzzer will sound when a command is received
from the host, when a screen for which the buzzer attribute is set is dis-
played, and when errors occur.
• When "ERR ON" has been set, the buzzer will sound only when an error
has occurred.
The buzzer will sound when "Buzzer check" is selected in the Maintenance
Mode regardless of the buzzer setting.
The NT20 has a function that turns off the backlight of the LCD panel to maxi-
mize its service life if no operation is performed for a certain period of time.
When a touch switch on the NT20 is pressed or a screen is switched or redis-
played by the PLC when the backlight is off by the backlight off function, the
backlight will turn on. Any changes of numeric values or characters displayed
on the screen will not effect the backlight to turn on again.
Use the memory switches to set whether or not the backlight off function is
used and the length of time to turn off the backlight.
The factory setting has been made so as to turn off the backlight if no opera-
tion has been performed for 10 minutes.
Set the backlight off function by the menu operation from the System Menu as
described below.
[ SYSTEM MENU ]
Quit
Transmit Mode
Maintenance Mode
[ MAINTENANCE MENU ]
Quit
PT Setting
I/O Check
Init. Memory
Memory Switch
Select "Maintenance Mode".
Select "Memory Switch".
DIP-SW Status
Section 3-8
109