Baumer IDC200 - Annex: Quality Features for Barcode and Matrix Code

8 | Web interface Baumer
54 Operating Manual IDC200 | V1.0
Input value Data type Measurement range Unit
QualityLevelD
QualityLevelE
QualityLevelF
Selected code Text None
All1DCodeQualities
All2DCodeQualities
parameterized tool
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The process interface is capable of reading the following values:
Output value Data type Measurement range Unit
Is Pass Tri-State — = cannot be evaluated
0 = invalid
1 = valid
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8.4.1.6 Annex: Quality features for barcode and matrix code
Various code types provide numerous quality features described in more detail in the following.
Please note that these standards define lighting arrangement and image quality requirements,
reason why the found values cannot directly be mapped to every installation situation.
Barcode quality features (ISO/IEC 15416)
Denotation Description
Readability A = Code readable / F = Code not read
Symbol contrast Difference between maximum and minimum symbol
gray values
Minimum reflection value A = minimum gray value ≤ 0.5 * maximum gray value
F = otherwise
Edge contrast Minimum contrast between two symbol elements
Modulation Amplitude between symbol elements
Defects Irregularities in the gray value profile of a symbol
Capability of decoding Deviation in width of symbol elements
Other code-specific parameters Depending on the code type, e.g. evaluation of light
margin width, symbol width ratio, etc.