Datalogic DS2100N Instrukcja Instalacji Pobierz pdf (Strona 38)

DS2100

3 READING FEATURES

The number of scans performed on the code by the DS2100 and therefore the

decoding capability is influenced by the following parameters:

• number of scans per second

• code motion speed

• label dimensions

• scan direction with respect to code motion

At least 5 scans during the code passage should be allowed to ensure a successful

read.

3.1 STEP-LADDER MODE

If scanning is perpendicular to the code motion direction (Figure 28), the number of

effective scans performed by the reader is given by the following formula:

SN = [(LH/LS)

SS] – 2 Where: SN = number of effective scans

LH = label height (in mm)

LS = label movement speed

in (mm/s)

SS = number of scans per second

Figure 28 - "Step-Ladder" scanning mode

Direction of code

movement at LS s

eed

Laser beam

DS2100

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 47 48

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Datalogic DS2100N Instrukcja Instalacji Strona 38