A&D HV-G Series instruction manual 16 RS-232C Serial Data Interface

16 RS-232C Serial Data Interface

RS-232C interface has the following two modes.

Stream mode Outputs data countinuously and can be used for printing data.

Command mode Controls the scale using commands from a computer.

It is necessary to set the parameters of the “Baud rate ( f4 )”,

”Output mode ( f5 )”, “Format ( f15 )” in the function table in advance.

There are option cables as follows:

AX-KO557A RS-232C cable, D-sub 25 pin, 2m

AX-KO1786-200 RS-232C cable, D-sub 9 pin, 2m

Transmission system		EIA RS-232C
Transmission		Asynchronous, bi-directional, half-duplex
Data format		Baud rate:2400, 4800, 9600 bps
		Data:	7 bits
		Parity:	1 bit, Even
		Start bit	1 bit
		Stop bit	1 bit
		Code	ASCII
		Terminator		CR LF	(CR: 0D[H], LF: 0A[H])
Pin Connections
		Pin No.	Signal name		Direction	Description
		1	-
		2	RXD		Input	Receive data
	3		TXD		Output	Transmit data
		4	-
	5		SG	-		Signal ground
	6		-
	7		DSR		Output	Data set ready

Circuit

HV-G Instruction Manual Page 48