Christie UHD654-X-HR, Technical Reference

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UHD654-X-HR LCD Panels Technical Reference – External Controls
020-001684-01 Rev. 1 (11-2019)
Copyright © 2019 Christie Digital Systems USA, Inc. All rights reserved.
About external controls
5
Commands sent from an automation/control system or a control computer to the display panel must
be sent in this format:
[STX] [IDT] [TYPE] [CMD] ([VALUE] or [REPLY]) [ETX]
Where:
•
[STX]
indicates the start of the data command (always 07).
•
[IDT]
is the display ID. Use hexadecimal values 01 to 19 inclusive to address a single display
panel. Use 00 to broadcast a command to all display panels in a video wall.
•
[TYPE]
is the command type:
• 00 = return to host (response from the LCD panel)
• 01 = read/action
• 02 = write
•
[VALUE]
is the parameter setting for the command.
•
[REPLY]
is the parameter setting for the command, acknowledged by the display panel in its
response to a command.
•
[ETX]
indicates the end of the command data (always 08).
Examples: Serial commands and responses
The following are some examples of serial commands and their responses.
Description Command sent to the display
panel Response received from the
display panel
Turn off the display panel. 07 01 02 50 4F 57 00 08 07 01 00 50 4F 57 00 08
Turn on the display panel. 07 01 02 50 4F 57 01 08 07 01 00 50 4F 57 01 08
Request the display panel status 07 01 01 50 4F 57 08 07 01 00 50 4F 57 XX 08
(XX = 0 when off, or 1 when on)
Set the display panel contrast to 30
(1E hex). 07 01 02 43 4F 4E 1E 08 07 01 00 43 4F 4E 1E 08
Request the display panel use 4:3. 07 01 02 41 53 50 02 08 07 01 00 41 53 50 02 08
Reset the display settings on the
display panel. 07 01 02 41 4C 4C 00 08 07 01 00 41 4C 4C 00 08
Request the serial number of the
display panel. 07 01 01 53 45 52 08 07 01 00 53 45 52 S(0)...S(12) 08
(S(0)...S(12) = serial number in
ASCII)
Request the firmware version of the
display panel. 07 01 01 47 56 45 08 07 01 00 47 56 45 S(0)...S(5) 08
(S(0)...S(5) = firmware version in
ASCII)