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Operating Instructions
Chapter
10
CLV490 Bar Code Scanner
8009993/RA61/2007-07-20
©
SICK AG · Division Auto Ident · Germany · All rights reserved
10-87
Appendix
CLV-Setup Help
Online help function that provides support for using the "CLV-Setup" program. The help
function explains the CLV490 parameters and their permissible values and can be launched
directly from CLV-Setup in an HTML browser, such as Internet Explorer
TM
.
Code angle (CW value)
Current deflection range of he scan line (oscillating mirror) perpendicular to the scan
direction when a bar code is recorded. Calculated by the CLV490 for each scan and used,
for example, to define a capture range so that bar codes with identical data contents in a
given range can be separated.
Code Info/Separator
Data block in the reading result on the
Ö
host interface. Used to provide additional informa-
tion about the bar codes. Can be attached to the bar code as a prefix or suffix. Contains up
to 10 elements, consisting of reading diagnosis data and/or constants (control characters,
letters, digits), depending on the configuration. The "Code-Info/Separator" block is empty in
the default setting of the CLV490.
Code geometry
Length and height dimensions of the bar code.
Command strings, commands
CLV490 user interface – alternative to the "CLV-Setup" program. Basic, yet clearly struc-
tured command language for modifying the CLV490 parameter sets online. Accesses the
CLV490 command interpreter directly. Special programming activities are required to use
the command strings from the host.
Configuration file
File in the "CLV-Setup" program that archives the entire
Ö
parameter set of the CLV490.
Can also be printed out in tabular form.
Data forwarding
Option of forwarding data sent by the host transparently to a terminal via the CLV490 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
Ö
reading result output by the CLV490 on the
Ö
host inter-
face. The structure of the data string is flexible and can be adapted to a large extent to the
subsequent data processing task. The data output format of the
Ö
auxiliary 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.
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