Siemens SIMATIC MV500 Operating Manual page 74
Optical identification
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Also See for SIMATIC MV500:
- Operating instructions manual (294 pages) ,
- Operating instructions manual (236 pages)
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Application
5.1 Program
Parameter
Possible values
Sample spacing
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•
Security
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•
•
•
•
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Sample threshold
-5 ... 0
offset
Sample direction
•
•
•
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74
Default
Dynamic
Saved
Dynamic
0
0
20
40
60
80
100
0
Hor./Vert.
Hor./Vert.
Vert./Hor.
Hor. only
Vert. only
Description
Distance between the samples being searched
for.
Saved: The reader optimizes the spacing of
•
the saved code to provide faster and more re-
liable decoding.
Dynamic: The reader uses the default value
•
for the barcode.
This value can only be specified for Code 39, I 2
of 5 and Codabar if no checksum is used. Speci-
fying a higher security value lowers the average
decoding at the cost of lower decoding flexibility.
The search sample threshold value is specified
following "Save program". You can lower the
sample threshold value by selecting a negative
offset to make sure that a barcode with a slightly
weaker contrast than that of the saved code can
nevertheless be decoded.
Bar code search method:
Hor./Vert.: The reader begins at the center
•
point of the viewing field or the image and
searches the entire viewing field first in a hori-
zontal and then, where necessary, in a vertical
direction.
Vert./Hor.: The reader begins at the center
•
point of the viewing field or the image and
searches the entire viewing field first in a ver-
tical and then, where necessary, in a horizon-
tal direction.
Hor. only: The reader begins at the center
•
point of the viewing field and searches through
the entire viewing field horizontally.
Vert. only: The reader begins at the center
•
point of the viewing field and searches through
the entire viewing field vertically.
Operating Manual, 05/2019, C79000-G8976-C495-02
SIMATIC MV500
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