Requirements For Qr Codes - Siemens SIMATIC Vision Sensor VS 130-2 Manual

•
The image background must have a homogeneous brightness (no textures
such as stripes or grooves etc.).
•
The view angle of the sensor to the printed surface must be approaching
vertical (80 to 90 degrees).
Note
Operating and monitoring via the setup support can lead to longer cycle times.
1.7.2

Requirements for QR codes

General Requirements for QR Codes and Legibility
The requirements are as follows:
•
It can read codes in which directly adjacent code points have a minimum
distance of 5 pixels and up to a maximum distance of 35 pixels.
• The view angle of the sensor to the surface must be between 70 ° and 90 °.
•
The diameter of the dots must be uniform over the entire code field.
•
The contrast between dots and the background must be approximately the
same over the entire code field.
•
The image background must have a homogeneous brightness (no textures
such as stripes or grooves etc.).
•
The following code types are not supported: Micro QR code, Macro QR code
•
Due to the limited image resolution, the maximum code dimension 89x89 (for
all sensor heads except 6GF2002-8GB) or 133x133 (for sensor head
6GF2002-8GB) can be read.
Vision Sensor SIMATIC VS 130-2/VS 130-2vcr
A5E00475759-01
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