![background image](http://html.mh-extra.com/html/sick/1016958/1016958_operating-instructions-manual_1264215260.webp)
Chapter
10
Operating Instructions
CLV490 Bar Code Scanner
10-92
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8009993/RA61/2007-07-20
Appendix
SMART decoder
Specially developed
Ö
decoder for reading bar codes with an extremely small code height
and for poor-quality or contaminated code prints.
Specification diagrams
Diagrams for reading the resolution-specific depth of field (DOF) for specific focus positions.
Splitter
Data block in the reading result of the
Ö
host interface. Used to separate the data content
of the bar codes. Contains up to 5 elements, consisting of constants (control characters,
letters, digits), depending on the configuration. The "Splitter" block is empty in the default
setting of the CLV490.
Standard decoder
Tried-and-tested
Ö
decoder from the CLV490 product family. Suitable for applications with
an adequate code height, limited tilt, and high-quality code prints.
Start/stop mode
With this type of separate reading pulse, only one object is located in the reading field for
each reading pulse. If the CLV490 is used in a stand-alone configuration, the start and end
of the reading pulse are controlled by external sensors, command strings, or with the free
running mode of the CLV490. If used in conjunction with other CLVs in a master/slave ar-
rangement including the OTC400 (e.g. omnidirectional 2-side reading), the CLV490 receives
the reading pulses via the OTC400. In this case, the size of the reading field is determined
by the distance between the two external sensors for starting (start of reading field) and
stopping (end of reading field) the reading pulse. The minimum reading distance between
two objects must always be greater than the size of the reading field. The devices are con-
nected via the CAN interface.
Storage in the CLV490
The application-specific
Ö
parameter set can be stored temporarily or permanently in the
CLV490. If it is stored temporarily in the RAM, it is lost as soon as the power supply is
switched off. Parameter sets that are stored permanently are transferred to the EEPROM in
the CLV490 and remain active as the current data record when the power supply is
switched off. The default setting is not affected by this and is stored in a read-only memory
(ROM).
Switching sequence
Focus control function for event-controlled switching. Sequence of focus position settings
with associated depths of field. The numbers of the active
Ö
distance configurations are en-
tered at the required position in the assignment table for this purpose.
System messages
Messages
Ö
in plain text used to output the operating status of the CLV490. The messages
are output on the auxiliary interface only and can be displayed in extended mode in the T
ER
-
MINAL
E
MULATOR
of the "CLV-Setup" program.
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW
WW
W
.100
Y.COM.TW