Denso BHT-7500W, BHT-7500S user manual BHT-Ir protocol

Appendices

B.2 BHT-Ir protocol

[ 1 ] Transmission Control Sequences

Shown below is a typical message transmission sequence supported by the BHT-Ir protocol. This sequence example does not include transmission errors or negative responses.

Establishment of Data Link (Phase 1)

Data Transmis- sion (Phase 2)

Release of Data Link (Phase 3)

		Sending Station								Receiving Station
	DLE ENQ and IDm*
										DLE ACK and IDs**
D￿ S￿ I￿			Heading text		D￿ E￿	C￿
L￿•￿O￿ ￿					L￿•￿T￿	R￿
E	H	D			E X		C
										DLE ACK and IDs
D￿ S￿		I￿	Serial	Data text 1				D￿ E￿	C￿
L￿•￿T￿		￿	number					L￿•￿T￿	R￿
E	X	D						E X	C

DLE ACK and IDs

D￿ S￿		I￿	Serial		D￿ E￿		C￿
L￿•￿T￿		￿		Data text n-1	L￿•￿T￿		R￿
E	X	D	number		E	X	C
								DLE ACK and IDs
D￿ S￿		I￿	Serial	Data text n	D￿ E￿		C￿
L￿•￿T￿		￿			L￿•￿T￿		R￿
E	X	D	number		E	X	C

DLE ACK and IDs

DLE EOT and IDs

DLE ACK and IDs

*IDm: ID of sending station **IDs: ID of receiving station

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