Table of Contents
Advertisement
Main serial interface - RS 485 half-duplex
5.4.2
The RS 485 half-duplex interface (3 wires + screen) is used for polled communication
protocols.
It can be used for multidrop connections in a master/slave layout.
The connector pinout follows:
Pin
5
4
7
Figure 5.10
RS485 half-duplex connections
For this interface type, the multidrop address must also be set via serial
channel by the VisoSetup utility or by ESC sequences.
Auxiliary interface - RS 232
5.4.3
The auxiliary serial interface is used exclusively for RS 232 point-to-point
connections. It is also used for configuring the VB12 scanner.
The parameters relative to the auxiliary interface (baud rate, data bits,
etc.) can be defined using the VisoSetup utility program.
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Name
Function
RTX485+
RS 485 transmitted/received data +
RTX485-
RS 485 transmitted/received data -
SGND
Signal ground
VB12
RTX485 +
5
RTX485 -
4
7
SGND
Barcode Scanner VB12
USER INTERFACE
RTX485 +
RTX485 -
RS485 Ref
Copyright Pepperl+Fuchs, Printed in Germany
Installation
15
Advertisement
Table of Contents
