Bronkhorst RS232 interface User Manual

Page 6

BRONKHORST

Page 6

RS232 interface

9.17.027

1.4

HORT FORM START

‐

All necessary settings for this module are already performed at Bronkhorst.

To follow next steps carefully is the quickest way to get this module operational in your own system.

In case of trouble programs like Hyper terminal (available in MS‐Windows) or FlowDDE (from
Bronkhorst) could be very useful.

START

Connect
PC / PLC

to RS232
interface

Check Power

Make sure your PC or PLC is connected to the RS232 interface by means of
the correct cable.

 Multibus instruments need a special cable with T‐connector.
 RS232/FLOW‐BUS interfaces need a one‐on‐one 9‐pole cable

without crossings with male and female connector

Cable lengths for RS232 must not exceed 10 meters.

Make sure instrument or interface is powered (+15…24Vdc)

Initialization procedure

In case of RS232/FLOW‐BUS interface without micro‐switch and LED’s, first
see that interface gets a free address on the FLOW‐BUS. Follow initialisation
procedure described at [Initialising RS232/FLOW‐BUS interface]

Check settings

communication port

Use settings [38400,n ,8 ,1 ] for your COM‐port:
Baud rate = 38K4 Baud, no parity, 8 data bits, 1 stop bit.

Ready

Start sending messages as described in following paragraphs.

Start sending