Image processing
4.1 Reading code (1D and 2D codes)
SIMATIC MV420 / SIMATIC MV440
Operating Instructions, 04/2013, A5E02371045-06
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4.1.2.5 Performance characteristics when reading DotCodes
Note
Changing to time-saving image acquisition with half resolution
If the cells are > 10 pixels, change to time-saving image acquisition at half resolution. This
change is also useful at high object speeds.
The recognition processes of the reader allow reliable and fast reading of printed DotCodes
of good quality.
Range of application
● The range of image sizes is from 4 to 40 pixels per cell. The range is static.
● The cells are isolated.
● The distortions are minimal, for example due to installation of the reader at an angle.
● There are no or only a few foreign objects in the area of the code.
● There are no interference patterns (grooves, granularity) in the area of the code.
● Fluctuations in contrast are slight.
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