Operating Instructions
Chapter
6
CLV 490 Bar Code Scanner
8 008 796/0000/25-06-2002
©
SICK AG · Division Auto Ident · Germany · All rights reserved
6-31
Operation
6.5.9
Auxiliary input
Function of the
terminal interface
. In this mode, the CLV accepts a bar code entered at the
terminal interface (via the keyboard or handheld scanner with decoder). It sends the bar
code to the host in a separate data string via its host interface. No reads can, therefore, be
corrected by transmitting missing bar codes subsequently.
Chapter 10.11.1 Auxiliary input, Page 10-65
describes this function and the associated pro-
cedure in greater detail.
6.5.10Self-test
After the CLV has been switched on, it performs a self-test before it is initialized with the
parameter set. The test can be called up explicitly at any time via CLV-Setup. During the self-
test, the CLV checks that its hardware components are functioning correctly. A final messa-
ge via the terminal interface provides information on the test result. The CLV does not output
a reading result during the test routine.
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 S
ELF
TEST
.
The "Device Ready" LED is extinguished. The CLV cancels the Reading mode and starts
the test routine.
After a few seconds, the CLV outputs the encoded test result in the form of a code
number (
3.
To return to the Reading mode, click R
EADING
M
ODE
or close the Terminal Emulator.
The CLV then returns to the Reading mode and the "Device Ready" LED lights up.
The code number ”15
000
” means that the self-test was completed successfully and that
no faults were diagnosed
Chapter 8.3.1 CLV without external parameter memory, Page 8-2
,
lists the error keys together with the associated corrective measures.
Fig. 6-15:
CLV-Setup: Displaying the self-test result in the Terminal Emulator