Operating Instructions
Chapter
10
CLV 490 Bar Code Scanner
8 009 993/O824/20-12-2004
©
SICK AG · Division Auto Ident · Germany · All rights reserved
10-87
Appendix
lating amplitude, optimum oscillating mirror functions are also possible (variable deflection
per distance configuration,
Ö
One-Shot).
Master/slave configuration
Special arrangement for connecting up to max. 10 SICK bar code scanners in the CAN Scan-
ner Network to one reading station (e. g. left/right read). Thanks to the master, the entire
network appears as one device to the host.
Multiple read
Variable number of reading operations that must provide identical reading results (data
content) 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 on the host interface for
Ö
No Read. Comprises a
variable combination of the error string and the
Ö
"Code-Info/Separator" block.
Object height detector
See distance detector.
Object polling
The CLV automatically detects a current object entering or leaving the reading field without
any external sensors.
Omnidirectional reading
Arrangement of the scan lines of at least two CLVs which form a cross. Due to the max. tilt
45
°
of the CLV the position of a bar code to the scan lines is free.
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
focus position switchover for slower applications (search mode).
Parameter set
Data record used to initialize and activate the functions implemented in the CLV. With
Ö
downloading and
Ö
uploading the parameter set is transferred form CLV-Setup to the
CLV or from the CLV to CLV-Setup.
Parameter memory, external
Optional accessory containing an integrated connector cover. Enables devices to be conve-
niently replaced by storing a copy of the CLV parameter set (EEPROM). The replacement
device then accesses this parameter set directly and does not have to be configured
manually.