Elmo HV-7000SX Data format specifications, Svga XGA Sxga, Command Parameter Data Visual Presenter

Function	Command	Parameter		Data	Comments
Resolution	RS	0 (VGA)			Command to switch the resolution.
selection		1	(SVGA)
		2	(XGA)
		3	(SXGA)
Gamma	GM	0 (1.0)			Command to switch the gamma setting value of the image.
selection		1	(0.6)
Image rotation	RO	0 (OFF)			Command to rotate the image.
		1	(90°)
		2	(180°)
		3	(270°)
Aparture	AP	0 (OFF)			Command to switch the sharpness (edge effect) of the image.
selection		1	(ON)
Default	DF	0			Command to reset to the initialized mode.
Status request	QS	0			Command to inquire the status of the equipment.
		2
ROM version	QR	0			Command to refer to the ROM version.
Acknowledge	SA	0 (OFF)			Command to select the command acknowledgement for each
check		1	(ON)		operation command.
Add CR	SC	0 (OFF)			Command to add CR [0Dh] to the end of the acknowledge data
command		1	(ON)		Default is OFF.

Note: " " in the data column means that SPACE [20H] should be transmitted twice.

Data format specifications

This command is executed in the form of 1-command/1 packet. The next command is not accepted until the previous processing is completed.

·The communication command always starts with STX (Start of Text), and ends with ETX (End of Text).

·If the communication format or command name is wrong, NAK (Negative Acknowledgement) will be sent from the Presenter as a result of failing to receive correctly.

·When the communication format is correctly received, the Presenter sends ACK (Normal Acknowledgement).

Transmission Command (PC Visual Presenter)

Each operation command is executed in ASCII code, and transmitted in a set of 7 bytes as follows:

(PC)

S T X

Command

Parameter

Data

E T X

(Visual Presenter) ACK

33