Runco CX-70DHD External Control, Serial Communications, RS-232 Connection, Port Configuration

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6. External Control

In addition to using the DHD Controller front-panel keypad or remote control unit, there are two methods of controlling the CX-70DHD 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.

The following sections describe both of these methods.

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.

6.1

Serial Communications

To interface the CX-70DHD with an automation/control system or a PC running terminal

RS-232 Connection and

emulation software, connect it to the Display Control output of the DHD Controller as

Port Configuration

shown in Figure 3-4and Figure 3-5.Connect your control system or PC to the RS-232

 

input of the DHD Controller as shown in Figure 3-11.

 

Configure the RS-232 controller or PC serial port as follows: no parity, eight (8) data bits,

 

one (1) stop bit and no flow control. Set the baud rate to 19200, to match that of the DHD

 

Controller RS-232 port.

 

Serial commands to the DHD Controller take the following form:

Serial Command Syntax

• Commands are not case-sensitive.

• For a single command that takes no parameters, type the command followed by a carriage return; for example, to set the aspect ratio to Letterbox, type LETTERBOX <Enter>.

• For a single command that takes a parameter, type the command, a space or a comma and the desired value followed by a carriage return; for example, to set the brightness to -10, type BRIGHTNESS -10<Enter> or BRIGHTNESS,-10<Enter>.

• You can also send a string of multiple commands on a single line, separated by commas. For example, COMPOSITE,BRIGHTNESS 50,16:9<Enter> switches to the Composite video input, sets the brightness to 50 and sets the aspect ratio to 16:9. Command strings can be up to 255 characters long.

Avoid combining the ON or POWER 1 commands with other commands

Note

on a single line. After sending ON or POWER 1, allow at least five (5)

 

 

seconds for the DHD Controller to power up. If you have enabled the

 

ISF splash screen (refer to Splash Configure on page 51), allow 15

 

seconds for the DHD Controller to power up.

 

Once it does, it will accept and properly execute multiple serial

 

commands.

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Contents CX-70DHD Page RuncoCare Standard Features RuncoCare Standard Two Year Limited WarrantyRuncoCare Claim Procedure Page Copyright and Trademarks Important Safety Instructions Declaration of Conformity Compliance InformationFCC Part Industry Canada ICES-003 Page Table of Contents Specifications Maintenance and TroubleshootingOperation External ControlList of Figures List of Figures Xiv About This Manual IntroductionIf you need Turn to Using This ManualKey Features and Benefits Description, Features and BenefitsOptional Accessories Controls and Functions Controls and IndicatorsCX-70DHD at a Glance STANDBY/ON Indicator Power SwitchRemote Control Sensor Display StandDHD Controller Front Panel Down Button Left ButtonRight Button Menu ButtonTriggers DHD Controller Rear PanelInputs 10. IR Main Power SwitchRS-232 / RS-485 Main AC FuseDHD Controller/CX-70DHD Remote Control CX-70DHD Remote Control UnitEnter IR Output IndicatorReturn / Exit LightSVC CinemaISF Night ISF DAYControls and Functions Remote Control InstallationInstallation Overview Quick SetupStep Procedure For Details, refer to Synchronization Issues Installation ConsiderationsAmbient Light VentilationInput Timing Possible Audio Latency milliseconds Possible Audio Latency for Various Input/Output TimingsOn a Wall or Table Stand Mounting the CX-70DHDQty Description Assembling and Installing the Table StandConnections to the CX-70DHD and DHD Controller Connecting CX-70DHD to the DHD ControllerConnecting the CX-70DHD to the DHD Controller Sections that follow Connecting SourceComponents to the DHD Hdmi Source Connections See FigureHdmi Source Connections DTV-Set-Top Box BD/DVD DTV-STBRgbhv Source Connections Computer RGB CamcorderDVD/DTV STB VCRGaming Console Camcorder Composite and S-Video Source ConnectionsConnection RS-232 Controller12. Connecting 12-volt Trigger Outputs Connecting 12-volt13. External IR Receiver Connection Connecting an External IR Receiver to the DHD ControllerInstallation Operation Turning on the Power Setting the Computer Display PropertiesOperation Using the On-Screen Menus Main Menu ServiceRunco Video Aspect Ratio Input SourceInput Source Aspect RatioRemote Aspect Ratio Control Description Key 169 Aspect Ratio SettingsSelect 169 to view 169 DVDs Hdtv programs in theirOverscan Remote Aspect Ratio Control Description KeyPicture PictureTypical Gray Bar Pattern for Adjusting Contrast Gray Yellow Cyan Green Magenta Red Blue Gray Yellow Cyan Green Magenta Red Blue Typical Test Pattern for Adjusting Sharpness Input Position Input PositionAdjust the Phase after adjusting Tracking see below Memory Presets Memory PresetsCalibration InformationShould be used by ISF-certified technicians only CIE 1931 Chromaticity Diagram Color Temperature Preset Associated x/y Values Color Temperature Presets and Associated Color PointsCopy/Paste Copied settings are not retained after a power cycleService ServiceInput Names Exit Operation 47 and ISF Day/Night Memory Presets Operation Cleaning Maintenance and TroubleshootingTroubleshooting Tips Troubleshooting ChartTo Input Position on Serial Command Syntax Port ConfigurationExternal Control Serial CommunicationsInput Selection Commands Serial CommandsPicture Adjust Commands Output Shift Commands Input Position CommandsExit Return key Enter keyCommand Bits Using Discrete IR CodesWith Toggle Bit = Hex Binary Function Start Remote Control With Toggle Description Button Name Bit = IR Command ListRC5 Control Codes for the DHD Controller RC5 DataEnter CX-70DHD Specifications SpecificationsCX-70DHD Specifications DHD Controller Specifications DHD Controller SpecificationsCX-70DHD Dimensions with Table Stand CX-70DHD DimensionsFormat Resolution Frequency Rate Hz MHz KHz Supported Signal Timings by InputSupported Timings Supported? √ = Yes, = NoPAL-B/G/H/I PAL-M Page 020-0925-01 Rev. B April
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