Siemens SIMATIC MV440 Operating Instructions Manual page 208

Operator control and monitoring
9.2 Working with the user interface
Barcode quality characteristic display on the user interface
Ten scan lines which return individual results are used to measure the quality of barcode
marking. The overall grade is equivalent to the average quality of all scan lines; please see
Barcode verification (Page 60)
The individual grades displayed on the user interface each represent the average value of
the quality characteristic. However, these average values are calculated solely from scan
lines for which valid quality values could be calculated. For example, even if values can only
be calculated for one of ten scan lines, conclusions can still be drawn on individual quality
characteristics for extremely poor quality codes.
This procedure may result in the overall grade on the user interface being significantly poorer
than the individual grades.
Note
Detailed description of parameters in the online help
For a detailed description of the parameters and possible values, refer to the online help.
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SIMATIC MV420 / SIMATIC MV440
Operating Instructions, 04/2013, A5E02371045-06