Installation guide

RS232 Commands
Planar UltraLux Series Installation Guide 31
RS232 Commands
The following table provides the most common RS232 commands that can be used.
Keep the following points in mind:
• Command length: 8 bytes (64 bits) for "Set" Commands, 4 bytes for "Get"
Commands
• Required check sum for each command: 100h (the last byte value is chosen to
force the check sum to 100 hex)
• The baud rate is 19200 (8 data bit, 1 stop bit, no parity, no flow control)
• Example in hex for "Set Backlight Brightness to 80": 08 22 00 00 00 00 50 86
(where green bytes are the command, blue is the value, red makes the check
sum = 100h)
Item Command Description Command Value in hex Command Result
1 Set Power to "off" 08 22 FE 00 00 00 00 D8 video board is set to soft power
off mode; backlight off
2 Set Power to "on" 08 22 FD 00 00 00 00 D9 video board is set to soft power
on mode; backlight on if video
source is present or when first
searching for video source
3 Get Power Status 04 21 16 C5 returns "Power: ON" if on;
"Power:" if off'; "Power: OFF" if on
but no video source present
4 Set Backlight
Brightness to "X" (1 to
100)
Set to 80: 08 22 00 00 00
00 50 86
backlight brightness set to
commanded value
5
Get Backlight
Brightness
04 21 08 D3 returns "Backlight = value"
6
Set Contrast to "X" (0 to
100)
Set to 40: 08 22 01 00 00
00 28 AD
contrast set to commanded
value (note: contrast changes are
not saved when hard power is
turned off—known bug)
7
Get Contrast 04 21 09 D2 returns "Contrast = value"
8 Set Sharpness to "X" (-4
to 4)
Set to -4: 08 22 03 00 00 00
00 D3
sharpness set as commanded
(for -4 a value of 0 is used; for 4, 8
is used)
9 Get Sharpness 04 21 0A D1 returns "Sharpness = value"
where value is Sharpness setting
+ 4