Operating Instructions
Chapter
8
CLV 45x Bar Code Scanner
Troubleshooting
8 009 139/K949/06-06-2002
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8-5
8.4ST error status in the read result of a bar code
Value
Meaning
Possible cause
Remedy
0
"Good Read"
–
Not applicable
1
Incorrect check digit
The check digit calculated by the CLV
during the reading process does not
match that in the bar code.
Check whether the check digits in the
bar code field and generated by the
print process are correct
2
No bar code of the enabled code type
conforming to the evaluation criteria
found
•
No bar code in the CLV's reading area
during the reading pulse
•
Code type/length in the CLV not
enabled for decoding
•
Reading window obstructed/dirty
•
Synchronize the pulse of the CLV
with the occurrence of a bar code in
the reading range
•
Parameterize the code configura-
tion correctly
•
Check the reading window
3
Device fault
Defective device
Call up the self-test! (refer to
Chapter 6.5.9 Self-test, Page 6-28
). If
result
≠
000: Contact the SICK Ser-
vice department
5
Required number of identical multiple
reads for the bar code not reached
•
Conveyor speed of the object too high
•
Scanning frequency is too low
•
In case of ladder-type positioning of bar
code relative to conveyor direction:
code height (bar length) too small
•
Print quality poor
•
Check the conveyor speed
•
Adjust the scanning frequency
•
Check code height.
•
Check print quality
6
Master:
Number of slave read results does not
match the parameterized number of
slaves
•
Parameterized number of slaves does
not match actual number of slaves
available
•
Timeout for the master is too short
•
Data connection between 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 read result is the
auxiliary input via the terminal interface
The bar code was not detected by the
reading function of the CLV, but was
entered subsequently with the auxiliary
function of the terminal interface and
transferred to the host in a separate data
string.
–
9
The "O
UTPUT
FILTER
" function is
activated for the code comparison.
The CLV has detected valid bar codes.
However, these do not match the
active set code(s).
The scanned object does not have a bar
code that matches the specified set code
–
A
The C
HECK
MAX
.
NUMBER
OF
CODES
func-
tion is active.
The number of valid bar codes
detected by the CLV in Reading mode
exceeds that specified under N
UMBER
OF
CODES
: M
AXIMUM
.
It repeatedly outputs the defined error
string until the number specified under
N
UMBER
OF
CODES
: M
INIMUM
is reached.
One object in a set of objects with a con-
stant 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 "Code 32" evaluation option is
activated for Code 39. The CLV is
attempting to interpret 6-digit C39 bar
codes as C32 bar codes (output as
9-digit decimal values).
The read 6-digit bar code is not a C32 bar
code.
The CLV outputs the defined error string
instead
–
Table 8-2: Meaning of the ST error status in the read result
