Chapter
6
Operating Instructions
CLV 490 Bar Code Scanner
6-26
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SICK AG · Division Auto Ident · Germany · All rights reserved
8 008 796/0000/25-06-2002
Operation
4.
Choose C
LOSE
to close the window.
If the parameters in the CLV were modified as a result of the teach-in procedure, CLV-
Setup asks you whether you want to copy and display the modified parameter set by
uploading it from the CLV.
5.
Confirm the query with Y
ES
.
The dialog box closes automatically.
The CLV resumes Reading mode and the "Device Ready" LED lights up.
The new background distance profile can be uploaded and displayed in CLV-Setup.
1.
Choose the R
EADING
C
ONFIGURATION
tab.
2.
In the A
UTOFOCUS
section, click the S
HOW
B
ACKGROUND
button.
The S
HOW
B
ACKGROUND
dialog box appears.
An example of a distance profile is shown in
6.5.5
Show CP-limits
In this mode, the CLV blanks certain parts of the scan line so that any limit values defined
for the active evaluation range of the scan line can be checked directly during parameteri-
zation. The restricted active evaluation range shortens the evaluation time for fast applica-
tions, for example, because the evaluation routine only has to take account of unblanked
parts of the scan line. The range is restricted by entering appropriate values for M
INIMUM
C
ODE
P
OSITION
and M
AXIMUM
C
ODE
P
OSITION
in the E
DIT
D
ISTANCE
C
ONFIGURATIONS
dialog box in
the R
EADING
C
ONFIGURATION
tab.
The CLV does not output a reading result in this mode.
Show CP-limits enables you to check whether
•
The visible range of the CLV has been defined accordingly for the selected setting in
Autofocus mode (restriction is independent of reading distance and always the same)
•
The restriction has been adapted for each active distance configuration in event-
controlled dynamic focus control ("Christmas tree" effect)
Show CP-limits can be called up via V
IEW
in the menu bar, as a device function via CLV 490
(interactively), or via the Terminal Emulator.
Fig. 6-11:
CLV-Setup: Display of th learned background
