Elmo HV-7100SX Data Format Specifications, Transmission Command PC → Visual Presenter, Ack

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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 this product as a result of failing to receive correctly.

•When the communication format is correctly received, this product 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

4 follows:

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	S					E
			Command	Parameter	Data
(PC)	T					T
(Visual Presenter)	X					X
	→	ACK

■Response data format (Visual Presenter → PC)

All response data is transmitted as ASCII code, and it covers parameter in the table of operation command.

•Status 0

S	Lighting	RGB	Posi /	Color	Pointer	Electronic	Pause	Local	E
T		output							T
	selection		Nega	/ B&W	display	enlargement		lock o ut
X		selection							X

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•Status 2

S		γ					Video	30H	E
	32H		Image	Aperture	White	Contrast		(Normal)
T		adjustment					output	31H	T
X			rotation		balance		selection		X
								(Adjustment)

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