SICK CLV 45 Series, Руководство по эксплуатации

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Chapter 6 Operating Instructions
CLV 45x Bar Code Scanner
6-24
© SICK AG · Division Auto Ident · Germany · All rights reserved 8 009 139/K949/06-06-2002
Operation
– in “One-Shot“ mode, the CLV also positions the scan line under the angle CW = 50.
– in “Set 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
. Fig. 6-11 shows an example of this. The changeover is carried continuously at a
second interval. The part of the scan line that remains active for the reading procedure is
the section between the shielding of CP
min
and the shielding of CP
max
.
Example:
Default setting: Evaluation set for the range of CP
min
= 5 to CP
max
= 95.
The CLV blanks the line as of CP
min
= 5 (short scan line) and as of CP
max
= 95 (long scan line).
Proceed as follows to check the restricted evaluation range:
1. Click on in the toolbar.
The terminal emulator window opens. The CLV is in the Reading mode.
2. Click on the S
HOW
CP
LIMITS
radio button under D
EVICE MODE
.
The dialog box for prompting the distance configuration is opened.
3. Click the distance configuration for which the active evaluation range of the scan line
has been restricted (DC-specific).
The "Device Ready" LED is extinguished. The CLV aborts the Reading mode and blanks
the scan line alternately as described above as of CP
min
and CP
max
.
4. Use Steps 2 and 3 to check for each active distance configuration whether the bar code
is in the center of the range between the end of the shorter scan line (CP
min
) and the
end of the longer scan line (CP
max
) or, if there are several bar codes, to determine
whether the center of the field of all the codes is within the range.
5. If necessary, correct CP
min
and CP
max
accordingly. Carry out a download to the CLV!
6. Click on the R
EADING MODE
radio button to exit the S
HOW
CP
LIMITS
mode.
The CLV then returns to the Reading mode and the "Device Ready" LED lights up.
Note In the Reading mode, the CLV does not actually blank the scan line visually, but instead takes
the values specified for the restricted evaluation range mathematically into account when
the data contents are decoded.
Fig. 6-11: Appearance of scan line in the "Show CP-limits" mode
CP
max
Active range
CP
min
Scan line 2
Scan line 1
"Show CP limits"