Auto Focus Multi Code Reader V430-series User’s Manual (Z392) 7-31
I/O Parameters
Symbol Contrast
Symbol Contrast Threshold
Modulation
Usage: Lets the user know if symbol quality is less than acceptable.
Definition: If enabled, drives Output if grade is under Symbol Contrast Threshold.
Serial Cmd: <K870, output on overall grade, overall grade threshold, symbol contrast,
symbol contrast threshold, modulation, modulation threshold, reflectance
margin, reflectance margin threshold, fixed pattern damage, fixed pattern
damage threshold, axial non-uniformity, axial non-uniformity threshold, grid
non-uniformity, grid non-uniformity threshold, unused ECC, unused ECC
threshold>
Default: Disabled
Options: 0 = Disabled 1 = Enabled
Usage: Sets the threshold for driving the output.
Definition: Conforms to ISO/IEC 15415 symbol quality grading (A,B,C,D).
Serial Cmd: <K870, output on overall grade, overall grade threshold, symbol contrast,
symbol contrast threshold, modulation, modulation threshold, reflectance
margin, reflectance margin threshold, fixed pattern damage, fixed pattern
damage threshold, axial non-uniformity, axial non-uniformity threshold, grid
non-uniformity, grid non-uniformity threshold, unused ECC, unused ECC
threshold>
Default: Grade B
Options: 0 = Grade D
1 = Grade C
2 = Grade B
3 = Grade A
Usage: Lets the user know if symbol quality is less than acceptable.
Definition: If enabled, drives Output if grade is under Modulation Threshold.
Serial Cmd: <K870, output on overall grade, overall grade threshold, symbol contrast,
symbol contrast threshold, modulation, modulation threshold, reflectance
margin, reflectance margin threshold, fixed pattern damage, fixed pattern
damage threshold, axial non-uniformity, axial non-uniformity threshold, grid
non-uniformity, grid non-uniformity threshold, unused ECC, unused ECC
threshold>
Default: Disabled
Options: 0 = Disabled 1 = Enabled
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