Chapter
6
Operating Instructions
CLV 480 Bar Code Scanner
6-30
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8 010 080/O824/10-02-2005
Operation
6.5.3
Adjusting mode
The Adjusting mode enables the center of the scan line to be optimally positioned on the
bar code.
Chapter 4.3.3 Help functions for adjusting the CLV, Page 4-9
describes the pro-
cedure for going about this after the Adjusting mode has been called up. The CLV does not
output a reading result in this mode. The "Result 1" to "Result 4" switching outputs do not
become live.
The Adjusting mode can be called up by choosing V
IEW
in the menu bar, as a device
function via CLV 480 (interactively), or via the Terminal Emulator.
Line scanner with oscillating mirror:
In the "Adjusting" mode, the CLV behaves in the following manner:
–
In "Oscillating" mode (default setting: oscillating with a fixed amplitude), the CLV shuts
of oscillation and positions the scan line under the angle CW = 50 (corresponds to an
angle of deflection below 105
°
). This position cannot be altered.
–
In "One-Shot" mode, the CLV positions the scan line under the angle CW = 50
–
In "Fixed Position" mode, the scan line’s selected position remains unchanged.
1.
Click
in the toolbar.
The Terminal Emulator window is then displayed. The CLV is in the Reading mode.
2.
In the D
EVICE
M
ODE
section, choose A
DJUSTING
M
ODE
.
The "Device Ready" LED is extinguished. The CLV cancels the Reading mode and
blanks the red scan line as of position CP = 50 to position CP = 100.
3.
Choose R
EADING
M
ODE
to exit the Adjusting mode.
The CLV returns to the Reading mode and the "Device Ready" LED lights up.
6.5.4
Show CP-limits
In this mode, the CLV blanks certain parts of the red 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 D
ISTANCE
C
ONFIGURATIONS
tab of 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 restriction has been adapted for each ac-
tive distance configuration ("Christmas tree" effect)
Show CP-limits can be called up via V
IEW
in the menu bar, as a device function via CLV 480
(interactively), or via the Terminal Emulator.
Line scanner with oscillating mirror:
In "Show CP-limits" mode, the CLV behaves in the following manner:
–
in "Oscillating" mode (default setting: oscillating with a fixed amplitude), the CLV shuts
off oscillation and positions the scan line under the angle CW = 50 (corresponds to an
angle of deflection below 105
°
). This position cannot be altered.
–
in "One-Shot" mode, the CLV positions the scan line under the angle CW = 50.
–
in "Fixed Position" mode, the scan line’s selected position remains unchanged.
The CLV blanks the scan line alternately as of the set value for CP
min
and as of the set value
for CP
max
.
shows an example of this. The switchover is made continuously at inter-
vals of 1 second. The part of the scan line that remains active for the reading procedure is
the section between CP
min
and CP
max
.
