Denso BHT-200QW Spezifikationen Seite 158

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13.1 Backlight Function
The BHT has a backlight function (LCD backlight and key backlight). Pressing the M1 key
while holding down the Shift key activates or deactivates the backlight function. The default
length of backlight ON-time (ON-duration) is 3 seconds.
By using an OUT statement, you can enable/disable either or both the LCD backlight and key
backlight. (Refer to Appendix D, "I/O Ports.")
By using a KEY statement, you can select the backlight function on/off key instead of the
combination of the trigger switch and Shift key, as well as modifying the ON-duration of the
backlight. For details about the KEY statement, refer to KEY in Chapter 14.
Setting 1 to port 6020h with the OUT statement activates the backlight function and turns on
the backlight. If no key is pressed for the time length preset to port 6021h (default time: 3
seconds), the backlight goes off but the backlight function remains activated.
Press the M1 key
while holding
down the Shift key.
Or, press the backlight
function on/off key specified
by KEY statement
Press the M1 key
while holding
down the Shift key.
Or, press the backlight
function on/off key specified
by KEY statement.
Press the M1 key
while holding
down the Shift key
Or, press the backlight
function on/off key specified
b
y
KEY statement
The backlight function
isOFF when you turn
onthe BHT.
Backlight OFF
Backlight ON
If no key is pressed
for 3 seconds, the
backlight goes off
Backlight OFF
(The backlight function
remains ON.)
Press any key except for the
backlight function on/off key.
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