Barcode reader VB34
Installation
Da
te
of
issue
06/
1
3
/2005
38
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
* optional
** optional, RS485 level
Profibus interface
The Profibus interface is used for communication with a higher-level system and
allows for an extended network and remote diagnosis functionality of the reader.
For additional information, refer to the document “Profibus_Fam6k.pdf”, which is
available as additional documentation.
6.3.6
Voltage supply
The supply voltage of an individual reader must lie between 15 and 30 V DC.
In master/slave configurations, VISOLUX recommends a voltage supply with at least
24 V DC.
The power consumption of the different VB34 models is slightly different.
When several VB34 readers are connected in a master/slave configuration, the
maximum power consumption per reader is 15 W. Starting the motor results in a peak
demand of approx. 20 W for 5 to 10 seconds.
Figure 6.39
Voltage supply via the 25-/26-pin connector
VB34 electrical connections of the 9-pin Profibus socket
Pin
Description
Function
1
Shield*
Shield or protective earth
2
-
unoccupied
3
B-LINE (RXD/TXD-P)
Received / transmitted data P
4
CNTR-P**
Repeater control signal
5
DGND
Signal ground (M5V)
6
+5 V
5 V voltage plus (P5V)
7
-
unoccupied
8
A-LINE (RXD/TXD-N)
Received / transmitted data
9
CNTR-N**
Repeater control signal