Image processing
4.1 Reading code (1D and 2D codes)
SIMATIC MV420 / SIMATIC MV440
40 Operating Instructions, 04/2013, A5E02371045-06
4.1.3 Reading multiple codes in the image
Note
Restricted availability of multicode
Multicode functionality is not available for:
• QR codes
• DotCodes
• PDF417 codes
• VeriCodes
Note
Order of output
Output is line by line starting with the code of the top left and finishing at the bottom right.
If the order of the codes is required for an application (for example for writing a trigger-
synchronized match string), make sure that the position and rotation of the selected object
remains constant during every image acquisition.
In "Multicode" mode, up to 50 codes per image acquisition can be decoded. SIMATIC
MV440 UR can decode up to 150 codes image acquisition.
Range of application
● Even different code types can be read in one image. Combined operation with "Text-
Genius" and "Text-Genius Plus" optical character recognition (OCR) is also possible.
● Available for data matrix codes that can be read with standard methods. See also
Performance characteristics wh
en reading qualitatively good data matrix codes
(Page 34).
● The ma
ximum number of codes and the code types used are specified when the program
is saved. Depending on the configuration, the actual number and the code types found in
processing mode can vary.
● Due to the multiple decoding, the processing time is extended approximately proportional
to the number of codes per image.
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