Operating Instructions
Chapter
6
CLV 480 Bar Code Scanner
8 010 080/O824/10-02-2005
©
SICK AG · Division Auto Ident · Germany · All rights reserved
6-31
Operation
Example
:
Default setting: 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 line).
Proceed as follows to check the restricted evaluation range:
1.
Click
in the toolbar.
The Terminal Emulator window is then displayed. The CLV is in the Reading mode.
2.
In the D
EVICE
MODE
section, choose S
HOW
CP-
LIMITS
.
The dialog box for the distance configuration is then displayed.
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
cancels the Reading mode and blanks the red scan line alternately (as described abo-
ve) as of CP
min
and CP
max
.
4.
Check
Step 2 and 3
for each active distance configuration to determine 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 deter-
mine whether the center of the field of all the codes is within the range.
5.
If necessary, correct CP
min
and CP
max
accordingly. Perform a download to the CLV!
6.
Choose R
EADING
M
ODE
to exit the Show CP-limits mode. The CLV 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 into account when the data contents
are decoded.
6.5.5
I/O monitor in increment trigger
Function of the
terminal interface
. In this mode, CLV-Setup displays the conditions of the
various switching inputs/outputs of the CLV and any data transfer via the host interface. This
is done in a dialog box and is time-independent of the increment trigger. In stand-alone
configuration increment signals to the switching input "IN 4" of the CLV respectively in the
"OTS trigger" reading mode increment signals to the OTC 400 are required. The display is
continuous; the monitored signals are recorded. After the monitor is called up, the display is
started by the next data output from the CLV.
The display function in CLV-Setup can be used for troubleshooting when starting up or when
malfunctions occur during operation, as it supplies a convenient overview of the system
condition at each moment. The function itself has no effect on the CLV, apart from the
temporary change of the terminal interface operating mode.
Fig. 6-9:
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
