Omron NT11 - 01-2004 User Manual page 92

Backlight OFF
Reference
Correct Use
For details on the method for switching the backlight off with an instruction
from the PLC, refer to 5-5 NT11 Status Control (page 129).
The settings relating to the backlight OFF function that can be made with the
memory switches are: whether or not the backlight OFF function is used, and
- if it is used - what length of time will elapse before the backlight goes OFF.
The setting on shipment specifies that the backlight will go OFF after a period
of ten minutes during which there are no operations.
Select the backlight OFF time by performing the following operations, starting
from the system menu.
[System Menu]
Quit
Transmit Mode
Maintenance Mode
PT Setting
I/O Check
Initialize Memory
Memory Switch
[Memory SW1]
Backlight
Auto-restart:
History Data:
• To quit after setting the selection made, press the "ENTER" key.
• To quit without setting the selection made, press any two function keys
simultaneously.
• If "None" is selected, the backlight OFF function does not operate. As long
as no operations are performed, the same screen will be displayed indefi-
nitely.
• If "10 min" is selected, the backlight will be switched OFF if no operations
are performed for ten minutes.
• If "60 min" is selected, the backlight will be switched OFF if no operations
are performed for one hour.
In order to maximize the service life of the backlight, select "10 min" or
"60 min" if possible.
After images may remain if the same pattern is displayed for a long period.
To prevent the formation of an afterimage, either use the screen saver func-
tion or periodically switch screens.
1.0
Page:
OFF: 10min
Yes
Erase
Section 3-9
Select "Maintenance
Mode" with the key,
then press "ENTER".
Select "Memory Switch"
with the key, then press
"ENTER".
Pressing the [+/–] key
while "Backlight OFF" is
highlighted will cause the
selection for this item to
change cyclically in the
sequence "10 min"
"60 min" "None".
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