Chapter
10
Operating Instructions
Compact OMNI Scanner
10-40
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SICK AG · Division Auto Ident · Germany · All rights reserved
8 009 237/0000/07-05-2002
Appendix
Compact OMNI Scanner
Scanner with a scan line deflected by two mirrors in the device cover. The scan line is folded
and crossed which allows omnidirectional reading of bar codes.
Configuration file
File in the "CLV-Setup" program that archives the entire
Ö
parameter set of the CLX. Can
also be printed out in tabular form.
Data forwarding
Option of forwarding data sent by the host transparently to a terminal via the CLX using an
identifier. Data can also be forwarded in the opposite direction. Furthermore, this function
also allows data received on one of the serial interfaces to be output again straight away on
one of the same interfaces (echo). Application: forwarding reading results in pass-through
mode, e. g. in a master/slave network.
Data output string
Structured data telegram in the
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reading result output by the CLX on the
Ö
host interface.
The structure of the data string is flexible and can be adapted to a large extent to the sub-
sequent data processing task. The data output format of the
Ö
terminal interface, on the
other hand, cannot be changed.
Decoder, decoding
Code-type-specific evaluation routine for reconstructing the read bar code in electronic form
in order to decode its data content.
Distance configuration
Data record in the CLX for defining a
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focus position for the laser beam for
Ö
dynamic
focus control. The focus position must be entered on the R
EADING
C
ONFIGURATION
tab in the
"CLV-Setup" program for this purpose. The depths of field for the individual focus positions
are shown as a function of the resolution values in the specification diagrams.
Distance detector
System for recording the distance of objects with a bar code in front of the CLX in stages.
When the bar code is read from above, for example, the distance is detected by installing
photoelectric reflex switches above one another beside the conveyor belt. Together with the
combination of "IN 0" to "IN 4" switching inputs and the assignment table for the
Ö
dis-
tance configurations, the ranges for
Ö
dynamic focus control are defined. Only required if
the
Ö
Autofocus function is not used.
Distance profile
When using the
Ö
Autofocus function with differential background (with or without tracking),
the CLX can teach-in the ambient background (without objects) to narrow its active reading
range. The CLX creates a profile of the various distances in its reading field along the scan
line in a special mode. This profile is then used to detect objects in the reading field and to
set the required focus position at the level of the bar code on the object.
Download
Method of transferring the
Ö
parameter set that was modified with the
Ö
"CLV-Setup" pro-
gram offline from the PC to the RAM of the CLX. CLV-Setup transfers either a complete copy
of the CLX (D
OWNLOAD
TO
CLX) to the memory (RAM) or just the edited parameters using the
