Industrial Electronic Engineers, Inc.
SIZE
A
CODE IDENT NO.
05464
S036X2–XXX–XXXXX
Van Nuys, California
SCALE N/A
REV
N
SHEET 31 of 49
04/10/02
4.5
Screen Control Codes
[A
0
(RS) = High for the following Control Codes]
30h
Set Display Screen or Column Brightness Level
Sets the display brightness level using a 3 byte command consisting of control code 30h, column
ID, and brightness level. Column ID code FFh sets all columns. Brightness levels range from 00h
(brightest) through 07h (dimmest). (Default is 00h)
Note
Brightness levels must be set by columns rather than by
characters because of the construction of the vacuum
fluorescent tube.
31h
Begin Blinking Character(s)
Sets the start of blinking character(s) or underbar(s) and the blink rate using a 2 byte command
consisting of control code 31h and blink code. Subsequent characters will blink until Control Code
32h is sent. (If a character is written at the current cursor location, that character will blink).
The “Underbar” and “Both” code sets apply only to 36X2–151–05240.
Character Code
Rate
Underbar Code Rate
Both Code
Rate
00h
OFF (Default)
60h
OFF
80h
OFF
01h
1 Hz
61h
1 Hz
81h
1 Hz
02h
2 Hz
62h
2 Hz
82
2 Hz
04h
4 Hz
64h
4 Hz
84h
4 Hz
32h
End Blinking Character(s)
Sets the end of blinking character(s) at the current cursor location. Subsequent characters will not
blink until Control Code 31h is sent. (A character written to the current cursor location will not
blink).
If a blinking character is overwritten by a non–blinking character, or if the
Erase Line
command is
executed, the blink attribute is turned off.
33h
Blank Display Screen
Sets the display screen to OFF. Data and attribute settings are not affected.
34h
Unblank Display Screen
Returns the display screen to ON after 33h.
35h
Comma/Period/Triangle Function
35-01-n:
display character with period
n = display character 20-FF
35-02-n:
display character with comma
n = display character 20-FF
35-03-n:
display character with comma & period
n = display character 20-FF
35-04-n:
display character with triangle
n = display character 20-FF
