Rs 232/V24 Serial Digital Output - Chauvin Arnoux C 320 Notice De Fonctionnement

5.4 RS 232/V24 SERIAL DIGITAL OUTPUT

This output makes data acquisition with a computer or a printer very simple.
CHARACTERISTICS OF THE SERIAL LINK
Link by 9-pin connector:

Reception RXD

Transmission TXD

Request line

Logical ground
Character format: 8 bits, no parity, 2 stop bits
Transmission speed: 2400 baud
Transfer of a string of 23 bytes, of which 10 bytes (9+CR) for the temperature and
13 bytes (12+CR) for the conductivity.
There are 2 transmission request modes:
1. Request by front: the command line must go from 5V to 0V.
2. Request by word: for each parameter, there is a code that can be used to
select what is wanted.
Code required: T°C = E and Conductivity = C
An additional code is used to transfer the whole string:
Code required: G
Conductimeter C 320
5
9
➁
➂
➇
➄
1
6
English
5V
0V
43