Barcode reader VB34
Optical properties
Da
te
of
issue
06/
1
3
/2005
63
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
8
Optical properties
8.1
ACR technology (ACR™ 3 reconstruction)
The traditional method of reading barcodes can be described as “linear reading”.
Under this method, the laser beam passes across the barcode symbol from the start
to the end, as shown in the following figure:
Settings for digital inputs/outputs
Filter settings of digital inputs
Anti-disturbance hardware for inputs 1, 3 and 4
Anti-disturbance hardware for input 2
Operating mode has priority before active input
1
Operating mode has priority before active input
2
Operating mode has priority before active input
3
Operating mode has priority before active input
4
5 ms
500 µs
Active when closed
Active when closed
Active when closed
Active when closed
Output 1
Lead status
Activating event
Alternative activating event
Deactivating event
Alternative deactivating event
Deactivating timeout (ms)
NC
Reading completed
Repeated reading
Timeout
off
50
Output 2
Lead status
Activating event
Alternative activating event
Deactivating event
Alternative deactivating event
Deactivating timeout (ms)
NC
Reading without result
Partial reading
Timeout
off
50
Output 3
Lead status
Activating event
Alternative activating event
Deactivating event
Alternative deactivating event
NC
off
off
off
off
Parameters
Basic setting