Operating Instructions
Chapter
8
CLX490
8009237/RB47/2007-08-03
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8-3
Troubleshooting
8.3.2
LED error messages for the external parameter memory
The CLX also reports errors accessing the external parameter memory by means of the
"Device Ready" and "Read Result" LEDs.
LED behavior
Meaning
Possible cause
Remedy
1. When the device is
switched on, the "Device
Ready" LED blinks for ap-
prox. 10 s and then lights
up constantly.
Start option: S
TART
WITH
E
XTERNAL
P
ARAMETERS
.
The CLX has successfully loaded
the external parameter set to its
RAM.
–
None.
2. When the device is swit-
ched on, the "Device Rea-
dy" and "Read Result"
LEDs blink for approx.
10 s.
The "Device Ready" LED
then lights up constantly.
Start option:
S
TART
WITH
E
XTERNAL
P
ARAMETERS
.
The CLX 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 CLX.
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
XTERNAL
P
ARAMETERS
.
The CLX has
not
loaded ex-
ternal parameter set. Instead,
it has loaded the internal pa-
rameter set to its RAM.
•
Start option: S
TART
WITH
INTERNAL
P
ARAMETERS
.
The CLX 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 swit-
ched on, the "Device
Ready" LED and "Read
Result" LEDs blink
continuously
2)
.
•
Start option: S
TART
WITH
E
X
-
TERNAL
P
ARAMETERS
.
The CLX has
not
loaded the
external parameter set.
Instead, it has loaded the
internal parameter set to its
RAM.
The CLX, however,
does not output data on the
host interface.
•
Start option: S
TART
WITH
C
OPY
I
NTERN
–> E
XTERN
.
The CLX was
not
able to copy
the internal parameter set to
the external memory.
It has loaded the internal pa-
rameter set to its RAM.
•
External parameter memory not
connected.
•
The parameter set in the exter-
nal memory is not from a
CLX490.
•
The external parameter memo-
ry is defective.
•
External parameter
memory is not connected.
•
Data transmission error.
•
Internal parameter set too large
to be copied to the external me-
mory (memory is full).
•
The external parameter memo-
ry is defective.
•
See
3 Remedy.
•
Use the correct external para-
meter 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.
•
Ensure that the external pa-
rameter memory is connected
correctly (free wiring: check
wire assignment).
•
Repeat the startup procedure.
If the error is still present after
following
4
Remedy
, 2nd and
3rd paragraph
, contact the
SICK Service department.
•
Contact the SICK Service
department.
•
See
4 Remedy, 3rd paragraph.
1) The software of the parameter set in the CLX 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 and check the relevant parameter values in the tabs.
The software of the parameter set in the CLX is newer than that of the parameter set in the external memory: all of the new parameters in the CLX 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 CLX 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
