Barcode Scanner VB14
Auxiliary RS232 Interface
Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
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
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9.1
Inputs
The inputs available on the connector supplied with the scanner are the pins relative
to the External Trigger, as indicated below:
The External Trigger input is used in the On-Line operating Mode and tells the
scanner to scan for a code. The active state of this input is selected in software. Refer
to the VisoSetup Help On Line.
The yellow LED (figure 1.1 (2)) is on when the External Trigger forces a current flow
through the EXT TRIG+ and EXT TRIG- pins.
This input is optocoupled and can be driven by both an NPN or PNP type command.
The connections are indicated in the following diagrams:
Figure 9.2 Input NPN command using external power
Figure 9.3 Input NPN command using VB14 power
Connector
Name
Function
25-Pin
18
EXT TRIG+
external t
19
EXT TRIG-
external trigger -
30 V DC max.
EXTERNAL
TRIGGER
Signal
18
19
+5 V
Vext
V
EXT TRIG+
EXT TRIG-
VB14 25-pin
EXTERNAL
TRIGGER
Ground
V
9
18
19
25
+5 V
EXT TRIG+
EXT TRIG-
GND
VB14 25-pin
Signal
VS