Operating Instructions
Chapter
11
CLV65x Bar Code Scanner
Appendix
8011980/0000/2009-04-21
©
SICK AG · Division Auto Ident · Germany · All rights reserved
115
Bar code
Field of dark strips (bars) and light spaces (elements) arranged in parallel, which, by working
to a certain rule (specification), can be represented on the medium (subsurface) by various
print processes. A user-readable (alpha)numeric character is produced from each machine-
readable, corresponding number and combination of strips and spaces. Since the entire co-
ded information, framed by start and stop characters, is available as a whole in one
dimension and is also usually analysed by line, bar codes are also referred to as linear
codes. The various code types differ in their codeable character inventory, design (number
of elements per character, number of characters, start/stop characters, check characters),
their information density and in their print tolerances. The length of the code strips and
spaces has no bearing on the information content. However, longer code strips and spaces
can be more easily analysed by the reading device.
User interface
Windows-oriented input interfaces in the SOPAS-ET configuration software for operation
and configuration of the bar code scanner.
CAN interface
Physical data interface. Controls construction of a rapid SICK-specific CAN SENSOR network
with various functions (e. g. multiplexer, master/slave). Access to the CLV65x bar code
scanner for configuration is possible via the CAN interface (network) using the SOPAS-ET
configuration software in remote mode.
Code geometry
Code length and height dimensions.
Data output string
A structured data telegram for the reading results in two independent data output formats
that the bar code scanner itself prepares for output from its database. The output formats
can be output via the Host interface to the physical data interfaces RS-232/RS-422/485,
Ethernet or CAN. The design of the output formats is flexible (sequence of the code seg-
ments and elements, link with event conditions, filters, sorters etc.) and can be widely ad-
apted to the application-specific requirements.
Decoder, decoding
From the code type-dependent analysis routine to reconstruction of the codes read in elect-
ronic form, in order to decipher the data content.