Barcode reader VB34
Installation
Da
te
of
issue
06/
1
3
/2005
33
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
Fuchs Group • Tel.: G49 621 776-0 • USA +1 330 4253555 • Sin65 67799091 • Internet http://www.pepperl-fuchs.com
Network termination
When constructing a Lonworks system, it is important to terminate the network
correctly. For this, a BTK-6000 termination network is connected to the VB34 master
reader as well as to the last VB34 slave reader.
This termination network is equipped with two connectors and can be connected to
the 9-pin connector of the master or to the 9-pin socket of the last slave reader.
Figure 6.27
BTK-6000 termination network
Lonworks Interface
The Lonworks network consists of readers with input and output, which can be
connected to a multiple side or station-wide system.
Generally, the VB34 master uses the 9-pin socket as the output to the first slave
reader, while the 9-pin connector is completed with a BTK6000 termination network
(see Chapter 6.7.2 for details). With a T network configuration, both connector plugs
of the master are used for the two lead branches to the slave readers.
Both connections are always used to connect slave readers. For this purpose, the 9-
pin socket is used as the output and the 9-pin connector is used as the input. The
socket on the last reader is terminated to complete the network.
The following figure shows the connection of a VB34 as the master with a VB34 as
the slave reader.
For fieldbus models no external termination is required for the reader
as this is already integrated.
Note