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Operating Instructions
Chapter
10
CLV490 Bar Code Scanner
8009993/RA61/2007-07-20
©
SICK AG · Division Auto Ident · Germany · All rights reserved
10-37
Appendix
Start with external parameters (default setting)
When it starts, the CLV490 loads the external parameter set to its RAM.
The "Device Ready" LED blinks for approx. 10 s and then lights up constantly.
The data in the CLV490 is lost when the device is switched off.
Start with copy internal -> external
When it starts, the CLV490 loads the internal parameter set to its RAM. It then copies the
parameter set to the external memory in the connector cover and resets the start option to
"Start with External Parameters".
The two "Device Ready" and "Read Result" LEDs blink alternately for approx. 10 s. The
"Device Ready" LED then lights up constantly.
The data is not lost when the device is switched off since it is stored permanently in the
CLV490 and is identical to the internal parameter set.
10.3.4
Switching on the device for the first time
Since the external parameter memory in the connector cover is empty (e. g. on delivery) af-
ter the CLV has started, the CLV copies its current parameter set to the external parameter
memory if no CMC400 parameter memory module is available in the CDB420 or CDM490
Connection Module. Then the "Device Ready“ LED lights up. The CLV490 is ready for ope-
ration.
If an external parameter memory containing a corresponding parameter set is connected to
the CLV490, the "Device Ready" LED blinks for 10 s when the device starts up correctly and
then lights up constantly
.
10.3.5
Adjusting the parameter set in the external parameter memory (connector
cover) after it has been downloaded to the CLV490
If the CLV490 is started with the S
TART
WITH
E
XTERNAL
P
ARAMETERS
option with an external pa-
rameter memory in the connector cover and if the parameter set is downloaded from CLV-
Setup to the CLV490 with the
permanent
storage option, CLV-Setup asks you whether the
new parameter set is also to be copied to the external parameter memory (
This function prevents the CLV490 from reloading the old parameter set the
next time it starts.
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