Operating Instructions
Chapter
10
CLV 42x bar code scanner
Appendix
8 009 981/O078/16-08-2004
©
SICK AG · Division Auto Ident · Germany · All rights reserved
10-43
consisting of reading diagnosis data and/or constants (control characters, letters, digits).
The “Code Info/Separator“ block is empty in the default setting of the CLV 42x.
Code position (CP value)
Position of the first dark bar in a detected bar code along the
scan line. Calculated by the
CLV 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
decoding
purposes by specifying the maximum and minimum CP value for the application.
Command strings, commands
CLV user interface - alternative to the "CLV Setup" program. Basic, yet clearly structured
command language for modifying the CLV parameter sets online. Accesses the CLV
command interpreter directly. Special programming activities are required to use the
command strings from the host.
Configuration file
File in the CLV Setup program that archives the entire
parameter set of the CLV. Can be
printed out in the form of a table.
Data forwarding
Option of forwarding data sent by the host transparently to a terminal via the CLV using an
identifier. Data can also be forwarded in the opposite direction. Furthermore, this function
also allows data received on one of the serial interfaces to be output again straight away on
one of the same interfaces (echo). Application: forwarding reading results or reading pulse
commands in pass-through mode, e. g. in a master/slave network.
Data output string
Structured data telegram
in the reading result output by the CLV on the host interface.
The structure of the data string is flexible and can be adapted to a large extent to the
subsequent data processing task. The data output format of the terminal interface, on
the other hand, cannot be changed.
Decoder, decoding
Code-type-specific evaluation routine for reconstructing the read bar code in electronic form
in order to decode its data content.
Download
Method of transferring the
parameter set that was modified with the
CLV Setup
program offline from the PC to the CLV. CLV Setup either always transfers a complete copy
to the memory (RAM) of the CLV (D
OWNLOAD
TO
CLV) or just the parameter previously
processed using the context menu of the right mouse button (D
OWNLOAD
P
ARAMETER
) or all
parameters of the displayed tab (D
OWNLOAD
P
ARAMETERS
OF
THIS
VIEW
). You can overwrite the
existing parameter set in EEPROM of the CLV by choosing the "Permanent" save option.
Error messages
Messages in
plain text that are used to identify a malfunction on the CLV in Reading
mode. The messages are output via the terminal interface only. Exception: ST = 3 (device
error), which is also output on the host interface. The error messages can be displayed in
extended mode of the T
ERMINAL
E
MULATOR
in the user interface of the CLV Setup program.