User`s manual

Issued Date
Revision Status
Title
Page No.
22 / 44
V2.2
2009-2-20
IDP2310UX
(AL23PUX)
Command (CMD)
The command shall be one of the following values:
CMD 0 CMD1 CMD2 ASCII Description
0x42 0x52 0x54 “BRT” Brightness Command
0x4D 0x41 0x4E “MAN” Manufacturer ID Code
0x4D 0x43 0x43 “MCC” Display Control Command
0x54 0x59 0x50 “TYP” Type/Model Number Command
Brightness Command “BRT”
This command shall be sent to the display to command the backlight brightness control setting.
The brightness value shall be sent as 1 byte in the DATA field. A setting of 0x00 will indicate off.
A setting of 0xFF will indicate maximum brightness. Intermediate values will control brightness over
the range from minimum to maximum luminance.
If the data checksum is valid and the brightness was set, the display will reply to this command with
an ACK attention code. The DATA field in the reply will indicate the resulting brightness control setting.
If an invalid checksum was received and the message was not Broadcast and RS485, the display will
reply with an NAK attention code. The DATA field in the reply will indicate the current brightness
control setting.
Manufacturer ID “MAN”
This command shall be sent to the display to request Manufacturer ID Code. No data shall be sent
with this command.
The display will reply to this command with an ACK attention code. The DATA field will be set to
an ASCII string value that is unique for each manufacturer.
2.2.3 Commadns Table
function Command Description Acknowledge (if enabled)
Brightness control 0x81,
nn l “+” l ”-“ l
“r” l “R” l
“?”
Set brightness =
Value / increment / decrement
Reset
Query
Brightness.