Operating Instructions
Chapter
6
CLX490
8009237/RB47/2007-08-03
©
SICK AG · Division Auto Ident · Germany · All rights reserved
6-17
Operation
Triggering the reading pulse via the Terminal Emulator
In the default setting the "Sensor" switching input is the (external) trigger source of the rea-
ding pulse. The reading pulse can also be triggered directly via the Terminal Emulator of CLV-
Setup for test purposes. To do so, a different trigger source must be selected temporarily
in the CLX.
1.
Choose D
EVICE
C
ONFIGURATION
tab.
2.
In the R
EADING
T
RIGGER
M
ODE
section click the S
ERIAL
I
NTERFACE
option.
3.
Perform a download to the CLX.
To do so, click the S
ERIAL
I
NTERFACE
option again with the right mouse button and choose
D
OWNLOAD
P
ARAMETER
in the context menu.
CLV-Setup copies the parameter to the CLX temporarily.
The serial interface has been activated as the trigger source of the reading pulse and
is ready to receive appropriate commands (until the CLX is switched off).
4.
Click
in the toolbar.
The Terminal Emulator window is then displayed.
The CLX is in the Reading mode.
5.
Click the SW-T
RIGGER
O
N
button or press [F7].
CLV-Setup sends a start command to the CLX.
The "Sensor" LED lights up and the red scan line appears as a cross.
6.
Present the bar code pattern from
to the CLX.
7.
Click the SW-T
RIGGER
O
FF
button or press [F8].
CLV-Setup sends a stop command to the CLX.
The "Sensor" LED is extinguished. The CLX switches off the laser diode.
The CLX displays the reading result in the output window of the Terminal Emulator.
The "Read Result" LED lights up for a duration of 100 ms (default setting).
6.5.2
Percentage evaluation
In the Percentage evaluation mode, the quality of the reading function is assessed (no con-
veyor movement).
The CLX performs 100 scans in the free running mode and evaluates the reading quality. It
outputs the reading result continuously every 2 s via the
auxiliary interface
. The reading
results can be displayed in the terminal emulator of CLV-Setup. The standard decoder has
to be set temporarily for the percentage evaluation. The "Result 1" to "Result 4" switching
outputs do not become live in the Percentage evaluation mode.
The Percentage evaluation mode can be called up by choosing V
IEW
in the menu bar, as a
device function via CLX490 (interactively), or via the Terminal Emulator.
Note
Autofocus mode:
If the CLX operates with autofocus in stand-alone configuration, the Percentage evaluation
mode can only be started in the Autofocus mode "Minimum distance" or "Differential
background". The CLX fixes the timeout of the automatic focus position switchover to
30 ms, the preferred focus position is set to the last recognised object.
If the CLX operates with autofocus in OTS mode ("Differential background and tracking"), the
CLX switches automatically to the autofocus mode "Differential background“ during the the
Percentage evaluation mode.
The
standard
decoder
has to be set temporarily for the percentage evaluation.
1.
Choose the C
ODE
C
ONFIGURATION
tab.
2.
In the D
ECODER
section, choose S
TANDARD
.