Application
5.1 Program
SIMATIC MV500
74
Operating Manual, 05/2019, C79000-G8976-C495-02
Parameter
Possible values
Default
Description
Sample spacing
•
Saved
•
Dynamic
Dynamic
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.
Security
•
0
•
20
•
40
•
60
•
80
•
100
0
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.
Sample threshold
offset
-5 ... 0
0
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.
Sample direction
•
Hor./Vert.
•
Vert./Hor.
•
Hor. only
•
Vert. only
Hor./Vert.
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.