A&D EK-09H Specifications download pdf (Page 24)

9. RS-232C SERIAL INTERFACE

This interface allows the EK/EW-i series to be connected with a multifunction printer or

a personal computer.

 The RS-232C interface has the following four modes.

Stream mode Outputs data continuously.

Key mode Outputs data by pressing the PRINT key.

Auto-print mode Outputs data which meets the conditions of auto-print.

Command mode Controls the balance using commands from a computer.

 Set the parameters of the data format (bps and btpr) and data output mode

(prt), as necessary.

 Use a D-sub 9 pin cable (straight type) to connect with a computer.

 Windows Communication Tools Software (WinCT) to communicate with a

computer is provided as freeware. Visit the A&D website to download WinCT.

9-1. Interface specifications

Transmission system EIA RS-232C

Transmission form Asynchronous, bi-directional, half-duplex

Data format Baud rate: 1200, 2400, 4800, 9600 bps

Data: 7 bits + parity 1 bit (even or odd)

or 8 bits (non-parity)

Start bit: 1 bit

Stop bit: 1 bit

Code: ACII

Terminator: C

: 0Dh, L

: 0Ah)

LSB

MSB

Stop bit

Parity bit

Data bit

Start bit

Pin connections

1 (-15V~-5V)

0 (5V~15V)

D-sub 9pin male connector

1 N.C.

2 Transmit data

3 Receive data

4 N.C.

5 Signal ground

6 Data set ready

7 Request to send

8 Clear to send

9 N.C.

Inside of the EK/EW-

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A&D EK-09H Specifications Page 24

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