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0 rs-232 interface – Nova-Tech PGW Series User Manual

Page 26

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11.0 RS-232 INTERFACE

The balances have the ability to send or receive data over the serial interface.

The weighing data can be sent over the interface either automatically or when
the user presses the [Print] key.

The user has control over what data is to be printed.

The following gives a description of the RS-232 interface.

HARDWARE

The RS-232 interface is a simple 3 wire connection. The input and output
connections are:

Connector:

9 pin D-sub miniature socket

Pin 2 input to balance RXD

Pin 3 output from balance TXD

Pin

5

Signal ground GND

Handshaking is not applied.

Baud rate:

4800, 9600, 19200, 38400


Parity:

NONE (=8N1), EVEN (=7E1) or ODD (=7 O 1)


All lines are terminated with carriage return and line feed ().

In continuous output mode, or if single-line output on demand is selected, the
serial output format will be a single line in the form “1234.567 g”.

The format of the single-line output will change depending on the mode in
which the balance is operating, as described below.

If output on demand is selected, the user may optionally configure the serial
output as a choice of 3 styles of form, either in a default format or in one of
two custom formats. Each of the custom formats can be configured to output
up to 15 lines of data. The data types that can be printed are:

NAME TEXT

PRINTED

ID number

ID no.: xxxxxxxxxxxx

Serial number

Serial no. xxxxxxxxxxxx

Date

DATE dd/mm/yyyy

Time

TIME hh:mm:ss

Net weight

Net: xxx.xxx g

Gross weight

Gross: xxx.xxx g

© Adam Equipment Company 2007