Commands by the serial interface
PCD7.D250
Page 6-8
SAIA-Burgess Electronics Ltd.
(D25-06-E.DOC)
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6.3 Display control
Clear display
Clear display sets all the characters on the display to spaces, and moves
the cursor to the home position.
Command
ASCII
Decimal
Hex
Clear display
CTRL+L
12
0C
Save display/Restore display
Ten save/restore areas are provided, numbered 0 to 9. Restoring from a
display area that was not previously saved will produce a blank screen
with cursor on. The content of the stored areas is lost when the ..D250 is
powered off.
Command
ASCII
Decimal
Hex
Save display ‘n’
ESC @ S n
27 64 83 n
1B 40 53 n
Restore display ‘n’
ESC @ R n
27 64 82 n
1B 40 52 n
for „n“ =
0...9
48..57
30...39
Backlight off/on
The backlight is normally always on, and is required to make the text
visible. The backlight can be turned off and on (blinked) to provide a
visual indication of an alarm etc.
Command
ASCII
Decimal
Hex
Backlight off
ESC O
27 79
1B 4F
Backlight on
ESC L
27 76
1B 4C
