Sharp XV-Z17000 operation manual RS-232C Specifications and Commands, Computer control

RS-232C Specifications and Commands

Computer control

A computer can be used to control the projector by connecting an RS-232C cable (null modem, cross type, commercially available) to the projector. (See page 22 for connection.)

Communication conditions

Set the serial port settings of the computer as follows.
Signal format: Conforms to RS-232C standard.	Parity bit: None
Baud rate*: 9,600 bps / 38,400bps / 115,200bps	Stop bit: 1 bit
Data length: 8 bits	Flow control: None
*Use the same settings for the projector and computer.

Basic format

Send commands from the computer in the following order: command, parameter, and return code. After processing the command from the computer, the projector sends a response code to the computer.

Command format
	C1 C2 C3 C4 P1 P2 P3 P4									Return code (0DH)
			Command 4-digit		Parameter 4-digit
Response code format
Normal response						Problem response (communication error or incorrect command)
	O	K		Return code (0DH)			E	R	R		Return code (0DH)

Info

•When controlling the projector using RS-232C commands from a computer, wait for at least 30 seconds after the power has been turned on, and then transmit the commands.

•After sending an input selection or picture adjustment command and then receiving an “OK” response code, the projector may take some time to process the command. If a second command is sent while the projector is still processing the first command, you may receive an “ERR” response code. If this happens, try resending the second command.

•When more than one code is being sent, send each command only after the response code for the previ- ous command from the projector is verified.

•“POWR????”, “TABN _ _ _ 1”, “TLPS _ _ _ 1”, “TPOW _ _ _ 1”, “TLPN _ _ _ 1”, “TLTT _ _ _ 1”, “TLTM _ _ _ 1”, “TLTL _ _ _ 1”, “TNAM _ _ _ 1”, “MNRD _ _ _ 1”, “PJN0 _ _ _ 1”

−When the projector receives the special commands shown above:

*The on-screen display will not disappear.

*The “Auto Power Off” timer will not be reset.

−The special commands are available for applications that require continuous polling.

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