SICK CLV490 Instrucciones de operaciones descargar pdf (Pagina 111)

Operating Instructions Chapter 8

CLV 490 Bar Code Scanner

8 008 796/0000/25-06-2002

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 CLV

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 CLV‘s reading

field 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 entry of a bar code into the

reading field.

•

Correct the code configuration para-

meters.

•

Check the reading window.

3 Device fault. Device fault. Call up the self-test. See Chapter 6.5.10

Self-test, Page 6-31.

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.

6Master:

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 CLV, but was

entered subsequently with the auxiliary

function of the terminal interface and

sent to the host in a separate data

string.

–

The O

UTPUT

ILTER

function is activated

for the code comparison. The CLV 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.

–

AThe C

HECK

. N

UMBER

ODES

function is active. The number of valid

bar codes detected by the CLV in Read-

ing mode exceeds that specified under

UMBER

ODES

: M

AXIMUM

It repeatedly outputs the defined error

string until the number specified under

UMBER

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).

DThe C

ODE

32 evaluation option is acti-

vated 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 8-4: Meaning of the ST error status in the reading result

1 2 ... 106 107 108 109 110 111 112 113 114 115 116 ... 213 214

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SICK CLV490 Instrucciones de operaciones Pagina 111

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