Datalogic PowerScan PBT9500 Specifications download pdf (Page 293)

Symbologies

Product Reference Guide

283

Symbologies

Datamatrix DPM Decoding Safety

Decoding Safety is used to configure a decoder to be very aggressive to very

conservative, depending on a particular customer’s needs.

• Level 1 results in a very aggressive decoder.

• Level 5 results in a very conservative decoder at the expense of not

being abl

to read poorly printed or damaged labels.

There are many factors that determine when to change the decoding safety.

These factors include spots, voids, non-uniform backgrounds, damaged

labels, etc. that may be experienced in some barcode labels. If there are

many hard to read or damaged labels that cannot be decoded using a con-

servative setting, decr

ease the decoding safety to be more aggressive. In

case of rigorous reliability application requirements it is suggested to use

higher decoding safety values (conservative).

Set Length

Length Control allows you to select either variable length decoding or fixed

length decoding for the specified symbology.

Variable Length:

For variable length decoding, a minimum and maximum

length may be set.

Fixed Length:

For fixed length decoding, two different lengths may be set.

Set Length 1

This feature specifies one of the bar code lengths for Length Control. Length

1 is the minimum label length if in Variable Length Mode, or the first fixed

length if in Fixed Length Mode. Length includes the bar code’s data charac-

ters only.

The number of characters that can be set

varies, depending on the symbol-

ogy. Reference the page for your selected symbology to see specific vari-

ables.

1. Determine the desired character length (varies depending on symbol-

ogy). Pad the number with leading zeroes to yield two digits. For exam-

ple: 0 = 00, 5 = 05, 20 = 20, etc.

2. Go to the Set Length page for your selected symbology and scan the

ENTER/EXIT PROGRAM

ING MODE bar code to enter Programming

Mode.

3. Scan the bar code to SELECT LENGT

H 1 SETTING for your selected sym-

bology.

4. Scan the appropriate two digits from the keypad in Appendix D, Key-

pad, that represent the length setting wh

ich was determined in the

steps above. You will hear a two-beep indication after the last charac-

ter.

If you make a mistake before the last character, scan the CANCEL bar code to

abort and not save the entry string. You can then start again at the begin-

ning.

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