Operating Instructions
Chapter
8
CLV 480 Bar Code Scanner
8 010 080/O824/10-02-2005
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8-3
Troubleshooting
8.3.2
LED error messages for the external parameter memory
The CLV also reports errors accessing the external parameter memory by means of the "De-
vice Ready" and "Read Result" LEDs.
LED behavior
Meaning
Possible cause
Remedy
1. When the device is
switched on, the "Device
Ready" LED blinks for
approx. 10 s and then
lights up constantly.
Start option: S
TART
WITH
E
XTER
-
NAL
P
ARAMETERS
.
The CLV has successfully loaded
the external parameter set to its
RAM.
–
Not applicable.
2. When the device is
switched on, the Device
Ready and "Read Result"
LEDs blink for approx.
10 s.
The "Device Ready" LED
then lights up constantly.
Start option:
S
TART
WITH
E
XTER
-
NAL
P
ARAMETERS
.
The CLV has successfully
loaded the external parameter
set with tolerated errors
1)
to its
RAM
Transfer ok, but different parame-
ter versions in the external mem-
ory and CLV.
Upload parameter set to CLV-
Setup and check parameters
1)
.
3. The "Device Ready" LED
lights up constantly when
the device is switched on.
•
Start option: S
TART
WITH
E
X
-
TERNAL
P
ARAMETERS
.
The CLV has
not
loaded ex-
ternal parameter set. Instead,
it has loaded the internal pa-
rameter set to its RAM.
•
Start option: S
TART
WITH
INTER
-
NAL
P
ARAMETERS
.
The CLV has successfully
loaded the internal parame-
ter set to its RAM.
•
External parameter memory not
connected.
•
Start ok.
•
OK if the device is to be
operated without an external
parameter memory.
•
Check whether the external
parameter memory is connect-
ed correctly (free wiring: check
wire assignment).
•
None.
4. When the device is
switched on, the "Device
Ready" LED and "Read
Result" LEDs blink conti-
nuously
2)
.
•
Start option: S
TART
WITH
E
X
-
TERNAL
P
ARAMETERS
.
The CLV has
not
loaded the
external parameter set. In-
stead, it has loaded the inter-
nal parameter set to its RAM.
The CLV, however, does not
output data on the host
interface.
•
External parameter memory not
connected.
•
The parameter set in the exter-
nal memory is not from a
CLV 480.
•
External parameter memory is
defective.
•
See
3. Remedy.
•
Use the correct external pa-
rameter memory or overwrite
the current one.
•
Repeat the startup procedure.
If the error is still present after
following
4.
Remedy
, 1st and
2nd paragraph
, contact the
SICK Service department.
1) The software of the parameter set in the CLV is older than that of the parameter set in the external memory:
print out the parameter set using CLV-Setup. If necessary, display the ID of the unknown/errored command group(s) using the <STX> 8?ERR <ETX> command in the
Terminal Emulator window of CLV-Setup. Decode the ID using the reference manual entitled Command Language of the CLV Bar Code Scanners (on request) and check
the relevant parameter values in the tabs.
The software of the parameter set in the CLV is newer than that of the parameter set in the external memory:
all of the new parameters in the CLV are set to the default values. If these parameters are necessary, edit the values in the relevant tabs in CLV-Setup and download them
to the CLV and the external memory.
2) Flashing stops when the device switches from Reading mode to Parameter mode (e. g. during download from CLV-Setup).
Table 8-2: LED error messages for access to the external parameter memory
