Operating Instructions
Chapter
6
CLX 490
8 009 237/0000/07-05-2002
©
SICK AG · Division Auto Ident · Germany · All rights reserved
6-15
Operation
Note
The CLX only outputs several bar codes in the reading result if the parameterized minimum
and maximum number of bar codes is > 1, and several bar codes have been presented to
it. The number of bar codes to be read/output for each reading interval can be selected in
the C
ODE
C
ONFIGURATION
tab in the N
UMBER
OF
C
ODES
section.
The reading result of the
host interface
can also be displayed.
describes the procedure for this and the structure of the reading
result in the default setting.
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 by clicking
in the toolbar.
The D
OWNLOAD
P
ARAMETERS
dialog box is then displayed.
4.
Confirm the dialog box by choosing the T
EMPORARY
storage option.
The serial interface has been activated as the trigger source of the reading pulse and
is ready to receive appropriate commands.
5.
Click
in the toolbar.
The Terminal Emulator window is then displayed.
The CLX is in the Reading mode.
6.
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 scan line appears as a cross.
7.
Present the bar code pattern from
8.
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 win-
dow of the Terminal Emulator. The "Read Result" LED lights up for a duration of 100 ms
(default setting).
Fig. 6-4:
Reading result of the terminal interface: structure for No Read
No Read:
TT=_ _ 150 ms MG=_56 % n=_0 AK=1
no code!
1st. line:
TT
=
Duration of the reading interval
MG
=
Temporal mean value of the identification quality
n
=
Number of codes detected
AK
=
No. of the distance configuration used
1)
2nd. line:
no code!
=
No bar codes found!
1)
not relevant for autofocus function