![background image](http://html.mh-extra.com/html/omron/nt20/nt20_user-manual_744538130.webp)
109
Various System Settings
Section 3-8
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.
Note
The buzzer will sound when “Buzzer check” is selected in the Maintenance
Mode regardless of the buzzer setting.
3-8-3
Backlight OFF Function
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.
Turning ON the Backlight
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.
Setting the Backlight OFF Function
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
Select “Maintenance Mode”.
[ MAINTENANCE MENU ]
Quit
PT Setting
I/O Check
DIP-SW Status
Init. Memory
Memory Switch
Select “Memory Switch”.
Summary of Contents for NT20
Page 1: ...Programmable Terminal Cat No V091 E1 01 NT20 USER S MANUAL ...
Page 2: ...NT series Programmable Terminal User s Manual Produced March 2007 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 9: ...x TABLE OF CONTENTS ...
Page 15: ...xvi ...
Page 21: ...xxii EC Directives 6 ...
Page 37: ...16 Before Operating Section 1 6 ...
Page 153: ...132 Transferring the Resource Data Section 3 11 ...
Page 185: ...164 Numeral Setting Section 4 8 ...
Page 267: ...246 Key to Programs Section 6 8 ...
Page 281: ...260 Specifications Appendix A ...
Page 285: ...264 Transporting and Storing PTs Appendix C ...
Page 303: ...282 Function Restrictions Depending on the Support Tool Appendix I ...
Page 307: ...286 Index ...
Page 309: ...288 Revision History ...