FHD462-X LCD Panel User Manual
50
020-000769-02 Rev. 1 (01-2016)
External Control
In addition to using the display keypad or remote control unit, you can control the display using a
serial (RS232/RS485) link to send ASCII commands and receive responses to those commands.
You also use discrete infrared (IR) control codes to program a third-party remote control unit. For
more information, refer to
RS232 and Ethernet Communications
The display uses a simple text-based control protocol to take requests from control devices and to
provide responses to such devices. This section describes how to send control messages over a serial
(RS232) or Ethernet link between the display and an automation/control system or a PC running either
of the following:
• An audio/video control system such as those manufactured by AMX, Extron or Crestron
• The Video Wall Toolbox, a Windows application that provides a graphical user interface that
mimics the remote control buttons, as well as the ability to send serial commands and receive
responses to those commands. See
RS232 Connection and Port Configuration
Connect your control system or PC to the RS232 input of the display; refer to
If you are using the Video Wall Toolbox, select the COM: port used to connect the PC to the display. See
If you are using an audio/video control system, configure the RS232 settings as follows: no parity, 8
data bits, 1 stop bit and no flow control. Set the baud rate to 115200, to match that of the display
RS232 port.
Command and Response Format
Commands sent from an automation/control system or PC to the display must have this format:
[STX] [IDT] [TYPE] [CMD] ([VALUE] or [REPLY]) [ETX] [CR]
Where:
•
[STX]
indicates the start of the command data (always 07).
•
[IDT]
is the display ID Use hexadecimal values 01 to 19 inclusive to address a single display.
Use 00 to broadcast a command to all panels in a video wall.
•
[TYPE]
is the command type:
