Operating Instructions
Chapter
8
CLX 490
8 009 237/0000/07-05-2002
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8-9
Troubleshooting
8.4
ST error status in the reading result of a bar code
Value
Meaning
Possible cause
Remedy
0
Good Read.
–
None
1
Incorrect check digit.
The check digit calculated by the CLX
during the reading process does not
match that printed in the bar code.
Check whether the check digits in
the bar code and generated by the
print process are correct.
2
No bar code of the enabled code type
found according to the evaluation
criteria.
•
No bar code in the CLX‘s reading
field during the reading pulse.
•
Code type/length in the CLX not
enabled for decoding.
•
Reading window obstructed/dirty.
•
Synchronize the pulse of the CLX with
the entry of a bar code into the
reading field.
•
Correct the code configuration para-
meters.
•
Check the reading window.
3
Device fault.
Device fault.
If result
≠
15000: Contact the SICK Ser-
vice department.
5
Required number of successful multiple
reads for the bar code not reached.
•
Conveyor speed of the object is too
high.
•
Scanning frequency is too low.
•
Ladder-type arrangement for bar
code relative to the conveyor direc-
tion: code height (bar length) too
poor.
•
Print quality too poor.
•
Check the conveyor speed.
•
Adjust the scanning frequency.
•
Check the code height.
•
Check the print quality.
6
Master:
Number of slave reading results does
not match the parameterized number of
slaves.
•
The parameterized number of slaves
does not match the actual number of
slaves available.
•
The master timeout is too short.
•
The data connection between the
slaves and/or the master has been
interrupted.
•
Check the entered number of slaves.
•
Check the master timeout setting.
•
Check the cables between the slaves
and the master.
7
The source of the reading result is the
auxiliary input via the terminal interface.
The bar code was not detected by the
reading function of the CLX, but was
entered subsequently with the auxiliary
function of the terminal interface and
sent to the host in a separate data
string.
–
9
The O
UTPUT
F
ILTER
function is activated
for the code comparison. The CLX has
detected valid bar codes. However,
these do not match the active match
code(s).
The scanned object does not have a bar
code that matches the specified match
code.
–
A
The C
HECK
M
AX
. N
UMBER
OF
C
ODES
function is active. The number of valid
bar codes detected by the CLX in Read-
ing mode exceeds that specified under
N
UMBER
OF
C
ODES
: M
AXIMUM
.
It repeatedly outputs the defined error
string until the number specified under
N
UMBER
OF
C
ODES
: M
INIMUM
is reached.
One object in a set of objects with a
constant number of bar codes, for
example, contains more bar codes than
defined in the application.
This message is used to indicate
errors on the objects (e. g. check
whether objects are homogeneous:
mixed with incorrect objects).
D
The C
ODE
32 evaluation option is activa-
ted for Code 39. The CLX is attempting
to interpret 6-digit C39 bar codes as
C32 bar codes (output as 9-digit deci-
mal values).
The read 6-digit bar code is not a C32
bar code. The CLX outputs the defined
error string instead.
–
Table 8-4: Meaning of the ST error status in the reading result
