Top-Left Sector
Top-Right Sector
Bottom-Right Sector
Bottom-Left Sector
Figure 171. Central LED Group
Left Sector
Top Sector
Right Sector
Bottom Sector
Figure 172. Peripheral LED Group
In the software, each single sector can be turned on, however it is NOT possible to simultaneously turn on sectors
belonging to the separate LED Groups, Peripheral and Central. Even with this restriction, thirty different combinations of
ON/OFF lighting configurations can be obtained.
By enabling multiple Image Settings, each having a different ON/OFF LED combination, it is possible to acquire different
consecutive images, changing the activation of the eight LED sectors. This feature is particularly effective for reading codes
printed/marked on reflective surfaces, by sequentially turning OFF the single LED sectors.
In the example below, two Data Matrix codes which have been etched onto a plastic reflective surface must be read.
With all four LED sectors enabled (Example A), the code is not readable due to the LED reflections on the code surface. By
setting different Image Settings in which the Bottom-Right Sector is turned off (removed from the parameter combination –
Example B) and Top-Left Sector is turned off (removed from the parameter combination – Example C), the code is
illuminated by the other LED sectors without the reflections on the code surface.
Figure 173. Example A: Incorrect Illumination
Figure 174. Example B: Good Illumination on Left
Code
Figure 175. Example C: Good Illumination on
Right Code
ABR 7000 Series Barcode Reader
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