LXE MX1 Intrinsically Safe, Руководство пользователя

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Display 7
E-EQ-MX1ISOGWW-J MX1 I-Safe User’s Guide
Display Backlight
A display backlighting feature is available and depending upon programming, will operate in one
of three ways:
•
Backlighting Off. This is the most efficient way to operate the computer with battery
power.
•
Backlighting On For A Short Time. This will provide display backlighting for a
predetermined amount of time. Use of this feature will result in reduced battery life.
•
Backlighting On Whenever The Unit Is On.
This provides full time backlighting to the
display whenever the unit is turned on. It greatly reduces the expected battery life.
Display Backlight Timer
When the Display Backlight Timer expires the display backlight is turned off. The default value
for this parameter is 3 seconds. The value can be adjusted using the BIOS Setup. Refer to the
“MX1 I-Safe Reference Guide.”
Any of the following will wake the display and display backlight:
•
Display update by host or currently running application on the MX1-IS
•
Trigger
•
Any key on the keypad
When the display wakes up, the Display Backlight Timer will begin the countdown again. When
any of the above events occur prior to the timer expiring, the timer starts the countdown again.
Panning
The MX1-IS display can be panned around using keypress sequences so the user can view an
entire virtual 640 x 480 pixel screen. Initially, the 20 columns and 20 rows in the top left corner of
a virtual screen are displayed.
Full Alpha-Numeric Keypad (60 keys)
Up, Down, Left and Right 2
nd
key then the arrow key
Home 2
nd
and Shift keys and letter I key
Numeric-Alpha Keypad (41 keys)
Up, Down, Left and Right 2
nd
and Ctrl and the arrow key
Home 2
nd
and Ctrl and the Enter key
When the Home key sequence is pressed, the cursor moves to the top left hand corner of the
virtual screen display.
When the initial 20 row x 20 column portion of the virtual screen is displayed:
•
and the Pan Right key sequence is pressed, columns 10 through 30 are shown on the
display.
•
and the Pan Down key sequence is pressed, rows 5 through 25 are shown on the display.
Please refer to the “MX1 I-Safe Reference Guide” for technical information about the Panning
function.