Matrix Orbital LK202-24-USB - Manual (Page 30)

LK202-24-USB rev 1 30
6.7 Miscellaneous Commands
Note: The letter "R" in the Default column indicates that this state can be saved to nonvolatile memory with
the Remember command. See section 5.1.1.
Table 6-4 Miscellaneous Commands
Command Syntax Default Notes
Remember FE 93 [0|1]
254 147 off Turns the "remember" function on [1] or off [0].
Clear display FE 58
254 88
254 'X' n/a Clears screen of text and graphics, places text
cursor at top left.
Set contrast FE 50 [contrast]
254 80 [contrast]
254 'P' [contrast] 0x80
128 Sets display contrast. Compensates for
viewing angle. Contrast is a value between 0
and 255 (hex 0 to FF). Larger = darker.
Set contrast and save FE 91 [contrast]
254 145 [contrast] 0x80
128 Same as "set contrast" but saves [contrast] as
default.
Set Brightness FE 99 [brightness]
254 153 [brightness] 0xFF
255 Sets display brightness. Brightness is a value
between 0 and 255 (hex 0 to FF). Larger =
brighter.
Set Brightness and
save FE 98 [brightness]
254 152 [brightness] 0xFF
255 Same as "set brightness " but saves
[brightness] into memory.
Backlight on FE 42 [minutes]
254 66 [minutes]
254 'B' [minutes] on
R Backlight will stay on for [minutes]. If [minutes]
= 0 backlight will stay on permanently.
Backlight off FE 46
254 70
254 'F' on
R Turns off backlight.
Load startup screen FE 40 [40 char]
254 64 [40 char]
254 '@' [40 char] Matrix Orbital
LK202-24-USB
Loads new startup screen (40 characters).
Screen is remembered for subsequent power
ups.
General purpose
output off FE 56 [gpo #]
254 86 [gpo #]
254 'V' [gpo #] off Turns a general purpose output OFF. [gpo #]
may be from 1 to 6. See section 2.2 for further
details.
General purpose
output on FE 57 [gpo #]
254 87 [gpo #]
254 'W' [gpo #] off Turns a general purpose output ON. [gpo #]
may be from 1 to 6. See section 2.2 for further
details.
Read module type FE 37
254 55
254 '7' see table Reads the module type. See table in section
5.1.12.
Set RS232 port
speed FE 39 [speed]
254 57 [speed]
254 '9' [speed] 19,200 baud Sets RS232 speed. See table in section
5.1.13 for values of [speed]
Set Serial Number FE 34 [byte1][byte2]
254 52
[byte1][byte2]
254 '4' [byte1][byte2] This is a one-time-use command which works
only on units without factory set serial
numbers.