Operating Instructions
Chapter
10
CLV 45x Bar Code Scanner
Appendix
8 009 139/K949/06-06-2002
©
SICK AG · Division Auto Ident · Germany · All rights reserved
10-61
Multiple reading
Variable number of reading operations that must provide identical internal read results (data
contents) of the same bar code before the CLV outputs the result.
No read
The CLV failed to detect a bar code or the required number of bar codes specified by the
evaluation parameters during the
Ö
reading-pulse.
No read format
Special, parameterizable data block as a substitute for bar codes, which were expected but
not detected, in the data output string of the host interface for
Ö
no reads. Comprises a
variable combination of the error string and the
Ö
separator.
Object height detector
See distance detection
One-Shot
Selective, one-off deflection of the oscillating mirror for each
Ö
reading pulse. Usually com-
prises a slow forward phase (read) and a fast return phase (return to starting position).
Oscillating mirror reversal point
Deflection point of the oscillating mirror at which it changes direction. Can be used to trigger
a
Ö
focal position changeover for slower applications (search run).
Parameter record
Data record used to initialized and activate the functions implemented in the CLV. It is trans-
ferred from CLV-Setup to the CLV or vice versa with
Ö
downloading and
Ö
uploading.
Percentage evaluation
Special operating mode in which the quality of the reads (not those of the bar codes, howe-
ver) is assessed statistically. The bar codes must be stationary in the process. The CLV car-
ries out 100 scans and evaluates the reading quality. It then outputs the read results on the
Ö
terminal interface every 2 s together with the reading diagnosis data.
Plain text
Readable form of a CLV message. The CLV outputs special messages in coded form, e. g.
the result of the self-test is represented as three digits.
Profile bar code
Special bar codes that are created and printed using the
Ö
CLV-Setup user interface. They
contain coded parameter values of the parameter record. The Profile bar codes can be used
to configure the CLV with its optical interface (reading window) instead of a PC.
Reading diagnosis data
Data directly derived from the reading procedure by the CLV. These data enable the quality
of the read to be assessed. Output is carried out via the
Ö
terminal interface together with
the reading result. Only output on the host interface if enabled on the D
ATA
STRING
tab card
in the CLV-Setup user interface (for the CLV 45x disabled in the default setting).
