Chapter
10
Operating Instructions
CLX490 Compact OMNI Scanner
10-44
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8009237/RB47/2007-08-03
Appendix
Multiple read
Variable number of reading operations that must provide identical reading results (data
content) of the same bar code before the CLX outputs the result.
No Read
Special, parameterizable data block as a substitute for bar codes, which were expected but
not detected, in the data output string on the host interface for
Ö
No Read. Comprises a
variable combination of the error string and the
Ö
"Code-Info/Separator" block.
No Read format
Special, parameterizable data block as a substitute for bar codes, which were expected but
not detected, in the data output string on the host interface for
Ö
No Read. Comprises a
variable combination of the error string and the
Ö
separator.
Object polling
The CLX automatically detects a current object entering or leaving the reading field without
any external sensors.
Parameter set
Data record used to initialize and activate the functions implemented in the CLX. With down-
loading and uploading the parameter set is transferred form CLV-Setup to the CLX or from
the CLX to CLV-Setup.
Parameter memory, external
Optional accessory integrated in a connector cover. Enables devices to be conveniently re-
placed by storing a copy of the CLX parameter set (EEPROM). The replacement device then
accesses this parameter set directly and does not have to be configured manually.
Percentage evaluation
Special operating mode in which the quality of the reads (not those of the barcodes, how-
ever) is assessed statistically. The bar codes must be stationary. The CLX carries out 100
scans and evaluates the reading quality. It then outputs the reading results on the
Ö
auxil-
iary interface every 2 s together with the reading diagnosis data.
Plain text
Legible form of a CLX message. The CLX outputs special messages in coded form, e. g. the
result of the self-test is represented as three digits.
Reading angle (RA value)
Position of the first dark bar in a detected bar code along the
Ö
scan line. Calculated by the
CLX for each scan and can be used, for example, to separate bar codes with identical data
contents. The active evaluation range in the scan line can be restricted for
Ö
decoding
purposes by specifying the maximum and minimum reading angle value for the application.
Reading diagnosis data
Data directly derived from the reading procedure by the CLX. This data enables the quality
of the read to be assessed. The data is always output on the
Ö
auxiliary interface together
with the reading result. Only output on the host interface if enabled on the D
ATA
S
TRING
tab
in the "CLV-Setup" program (for the CLX disabled by default).
