Operating instructions

Operating Instructions Chapter 8
ICR890
T
roubleshooting
8011325/0000/2006-10-24 © SICK AG · Division Auto Ident · Germany · All rights reserved 101
8.3 ST error status in the reading result of a 1-D code (bar
code)
With the respective configuration, the ICR890 System transfers the ST error status to the
output string of the HOST data interface.
Value Meaning Possible cause Remedy
0 Error-free reading “Good Read“ – n/a
1 Wrong check digit The check digit which the ICR890 System
calculated during the reading does not
correspond to the printed check digit in
the bar code
area.
Check the correctness of the check
digit created during the printing
process in the bar code area.
2 No code of the released bar code type
found according to the analysis
conditions
• No bar code during the reading pulse in
the reading area of the ICR890 System
• Bar code type/length in the ICR890
System not released for decoding
• Reading window covered/soiled
• Synchronize the reading pulse of
the ICR890 with the occurrence of
a bar code in the reading area.
• Configure the bar code correctly.
• Check the reading window.
5 Required number of identical multiple
readings for the bar code not
achieved
• Conveyor speed of the object too high
• Scanning frequency too low
• With scalariform arrangement of the
bar code in the direction of transport:
Bar code height (strip length) to small
• Poor print quality
• Check conveyor speed.
• Adjust the parameter “Object
speed“ in the ICR890 System.
• Check the bar code height
• Check the print quality
7 The source of the reading result is the
auxiliary input via the Aux interface
The bar code was not been detected by
the reading of the ICR890 System, but
subsequently entered via the auxiliary
function of the Aux interface and
transferred to the host in a separate data
string.
n/a
9 The function OUTPUT FILTER is
additionally active for the bar code
comparison.
The ICR890 System has detected
valid bar codes, but these do not
correspond to the active set code(s)
The detected object does not have a bar
code which corresponds to the specified
set code.
n/a
AFunction C
HECK MAX. NUMBER OF CODES
is active.
The ICR890 System has detected
more valid bar codes in the reading
pulse than specified under N
UMBER OF
CODES: MAXIMUM.
Instead of the bar code contents, it
displays the number of the defined
error string, as defined under N
UMBER
OF CODES: MINIMUM.
In a batch of objects with a constant
number of bar codes, an object has, e.g.,
more bar codes than defined.
The message serves as the display of
an error for the objects (e.g. test for
sort pure: mixing with the incorrect
object).
DFor code39 the analysis option
“Code 32“ is activated. The ICR890
System attempts to interpret 6-digit
C39 bar codes as C32 bar codes
(output of 9-digit decimal numbers).
The read 6-digit bar code is not a C32 bar
code.
ICR890 System displays the defined error
string instead.
n/a
Tab. 8-7: Meaning of the ST error status in the reading result