Mitsubishi Electronics HC900E manual Interface, Control command diagram, Connection

DLPTM Projector

HC900 / HC900E

Controling the projector using a personal computer

This projector can be controlled by connecting a personal computer with RS-232C terminal.

PC-controllable functions :

•Turning the power ON or OFF

•Changing input signals

•Inputting commands by pressing the buttons on the control panel and remote control

•Menu setting

Connection

COMPONENT VIDEO IN

RS-232C cable

to RS-232C terminal

D-SUB 9-pin 8-pin SERIAL

Important:

•Make sure that your computer and projector are turned off before connection.

•Boot up the computer first, and then plug the power cord of the projector. (If you do not follow this instruction, the Comport may not function.)

•Adapters may be necessary depending on the PC connected to this projector. Contact your dealer for details.

1) Interface

PROTOCOL	RS-232C
BAUD RATE	9600 [bps]
DATA LENGTH	8 [bits]
PARITY BIT	NONE
STOP BIT	1 [bit]
FLOW CONTROL	NONE

This projector uses RXD, TXD and GND lines for RS-232C control.

For RS-232C cable,the reverse type cable should be used.

2) Control command diagram

The command consists of the address code, function code, data code, and end code. The length of the command varies among the functions.

		Address code		Function code	Data code	End code
	HEX		30h 30h	Function	Data	0Dh
	ASCII		'0' '0'	Function	Data
[Address code]			30h 30h (In ASCII code, '0' '0') fixed.
[Function code] A code of each fixed control move.
[Data code]			A code of each fixed control data (number) and not always indicated.
[End code]			0Dh (In ASCII code, ' ') fixed.

1