Picket-Fence Mode - Datalogic DS2100N Reference Manual

READING FEATURES

7.2.2 Picket-Fence Mode

If scanning is parallel to the code motion, (Figure 78), the number of effective scans is given
by the following formula:
SN = [((FW-LW)/LS) * SS] -2
DS2100N
For example, for a 60 mm wide code moving in a point where the reading field is 160 mm
wide at a 1500 mm/s speed, the DS2100N (500 scans per sec.), performs:
Where:
Figure 78 - "Picket-Fence" Scanning Mode
[((160-60)/1500) * 500] - 2 = 31 effective scans
SN = number of effective scans
FW = reading field width (in mm)
LW = label width (in mm)
LS = label movement speed (in mm/s)
SS = scans per second
Direction of code m
at LS speed
LW
FW
ovement
Laser beam
7
77