Barcode reader VB34
Optical properties
Da
te
of
issue
06/
1
3
/2005
65
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
-
α
max
as shown in the following figure:
Figure 8.4
Read zone with
α
max
8.2
PackTrack™
PackTrack™ is a patented operating mode for position-independent read stations. It
makes it possible to read and correctly assign codes on different objects, which exist
in the reading zone of the reader at the same time.
For the PackTrack™ operating mode, an encoder and a presence sensor are
required for tracking the moving targets.
The entire PackTrack™ functionality is programmed via the configuration software.
(Please refer to the online help for further information.)
In the following example, the codes of two or more consecutive packets effectively lie
in the reading zone at the same time. This results in a situation, in which the code of
the second packet is read first, even before the code of the first packet. A system
without PackTrack™ would assign the code of the second packet to the first packet
and vice versa, thus causing a major sorting error.
Figure 8.5
PackTrack™ system arrangement
To ensure the function works correctly, the PackTrack™ operating mode needs to be
calibrated after the readers have been installed. This step is absolutely necessary for
