Runco LS-100d User Manual

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Lightstyle™ Series LS-100d Installation/Operation Manual
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IMINAR
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In addition to using the DHD Controller front-panel keypad or remote control unit, there 
are three methods of controlling the LS-100d and DHD Controller externally: 
• Using a serial (RS-232) link to send ASCII commands and receive responses to those 
commands.
• Using discrete infrared (IR) codes to program a third-party remote control unit.
• Using an HDMI connection to send Consumer Electronics Control (CEC) commands 
from a BD player or other source component that supports CEC. 
The following sections describe these methods. 
6.1 
Serial Communications
The DHD Controller 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 link between the DHD Controller and an 
automation/control system or a PC running terminal emulation software. 
RS-232 Connection and 
Port Configuration
To interface the LS-100d with an automation/control system or a PC running terminal 
emulation software, connect it to the Display Control output of the DHD Controller as 
shown in Figure 3-1 and Figure 3-2. Connect your control system or PC to the RS-232 
input of the DHD Controller as shown in Figure 3-9. 
Configure the RS-232 controller or PC serial port as follows: no parity, 8 data bits, 1 stop 
bit and no flow control. Set the baud rate to 19200, to match that of the DHD Controller 
RS-232 port. 
Command Format
Commands sent from an automation/control system or PC to the DHD Controller must 
have the following format:
(www:xyz) [CR]
Where:
• ( and ) indicate the start and end of the command data. If these characters are 
present, the DHD Controller assumes that valid command data is present in the 
command string. Otherwise, the DHD Controller ignores the command.
• www indicates the command code. This field is case insensitive; for example, PWR, pwr 
and PwR are all equivalent.
• :x is the destination parameter.  This is an optional parameter that indicates which 
memory the command is referencing.  This parameter is reserved for future use.
6. External Control
The serial communication protocol described here replaces the 
serial protocol used by legacy Runco products (manufactured prior 
to September 2011) that include the DHD Controller. 
Runco recommends using this new protocol, as it is more concise 
and provides greater control than the old one. However, to maintain 
backward compatibility with existing automation/control system 
modules, the legacy Runco serial protocol is also supported. 
Note