Dukane 28A8751 RS-232C communication, Communications setting, Protocol, Header, Command data

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TECHNICAL (continued)

RS-232C communication

(1)Turn off the projector and computer power supplies and connect with the RS-232C cable.

(2)Turn on the computer power supply and after the computer has started up, turn on the projector power supply.

	Projector
Control jack
D-sub 15-pin shrink jack

Computer	RS-232C jack
	D-sub 9-pin

Communications setting

19200bps, 8N1

1 Protocol

Consist of header (7 bytes) + command data (6 bytes).

2 Header

BE + EF + 03 + 06 + 00 + CRC_low + CRC_high

CRC_low : Lower byte of CRC flag for command data.

CRC_high : Upper byte of CRC flag for command data.

3 Command data

Command data chart

byte_0		byte_1	byte_2		byte_3	byte_4		byte_5

Action				Type		Setting code
low		high	low		high	low		high
low		high	low		high	low		high

		Action (byte_0 - 1)
Action	Classification		Content

1	SET		Change setting to desired value.

2	GET		Read projector internal setup value.

4	INCREMENT		Increment setup value by 1.

5	DECREMENT		Decrement setup value by 1.

6	EXECUTE		Run a command.

TECHNICAL

TECHNICAL - 5

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Contents 28A8751 Page Page Page Page Page Page Page Page Page Contents Features Contents of packageBefore USE Rear / Right View Before USEPart Names Front / Left ViewReplacing Remote ControllerLoading the Batteries First LoadingInstallation Reference InstallationInstallation of the Projector and Screen Angle AdjustmentInstallation CablingCabling Power Connection Example of system setupPlug & Play Standby Power onPower OFF OperationsOperations Basic OperationBasic Operation Description Normal menu Single menu Set/Clear Mute Mode Press the Mute buttonAutomatic Adjustment at RGB Input Press the Auto button Automatic Adjustment at Video Input Press the Auto buttonSelect Position of Image Setup MenuSetup Menu Select Image Aspect RatioInput Menu Input MenuImage Menu Description Setup Initial Screen Display Select Turn on withSelect Color Temperature Image MenuSelect Menu Display Language Select with Options MenuOptions Menu Description Select Menu Background Color Select withSelect Blank Screen Color Select the color with No Signal MenuNo Signal Menu Setup Initial Screen Display Select the Turn on withLamp Life MaintenanceLamp LampMaintenance Resetting the Lamp TimerReplacing the Lamp Cleaning the Lens Air Filter MaintenanceOther Maintenance Maintenance Inside the EquipmentOSD Messages TroubleshootingMessage Contents OSD MessageIndicator TroubleshootingIndicators Message Indicators MessageSymptom SymptomSymptom Possible cause Remedy Specifications SpecificationsWarranty and AFTER-SERVICE Page Mini Din 4-pin Connector S-VIDEO Dimension DiagramSignal Connector Pin Assignment Sub 15-pin Shrink Connector RGB Technical Example of computer signalMac 13mode Initial set signalsConnection to the Mouse Control Protocol Communications settingCommand data RS-232C communicationIncreasing the projector setting value Increment command Requesting projector status Get commandChanging the projector settings Set command Using the projector default settings Reset CommandCRC Be EF BA D2 Be EF FD D3 Be EF Ntsc PAL Regulatory Notices FCC Statement WarningFor the Customers in Canada Pour les utilisateurs au Canada Page Legal Information Audio Visual Products