Siemens SIMATIC Vision Sensor VS 130-2 Manual page 20

Product Overview
Processing Method for Reliable Reading of Difficult Data Matrix Codes and
Vericodes
Settings:
•
Speed = low
•
Exposure = Manual or Auto V1 or Auto
The self-adapting recognition method of VS 130-2/VS 130-2vcr allows the most
difficult codes to be read reliably. The most reliable detection is reached by
VS 130-2/VS 130-2vcr when you make adequate time available for adaption by
setting a high cycle time limit.
The recognition method is designed for a variety of practical situations in which
various aspects of the read configuration cannot be considered ideal. For example:
•
Any alignment and position of the code in the image
•
Reading codes even when dots overlap or are largely isolated
•
Reading codes recorded mirror-inverted
•
Tolerance of distortion, due for example to inclined installation of the image
sensor (view angle down to a lower limit of approximately 50° to the printed
surface)
•
Resistant to similar-looking foreign objects in the area of the code
•
Resistant to interference patterns (grooves, granularity) in the area of the code
•
Good tolerance of contrast fluctuations
•
Good range of imaging size from 5 to 35 pixels per dot
Rectangular or square codes (with data matrix codes with maximum dimensions of
72 x 72 dots) can be read, whereby the brightness polarity (bright on dark or dark
on bright) is unimportant.
If individual conditions are particularly favorable and stable in a concrete situation
(and therefore less effort is required for internal adaption), the read rate of
VS 130-2/VS 130-2vcr can reach a peak of 20 per second. You can influence this
by setting the "Speed" and "Cycle time limit" parameters as described below.
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Vision Sensor SIMATIC VS 130-2/VS 130-2vcr
A5E00475759-01