Siemens SIMATIC MV500 Operating Manual page 71

Parameter Possible values
ECC level
•
•
Sample direction
•
•
•
•
•
Sample threshold -5 ... 0
offset
Allow quiet zone ☐ / ☑
clutter
SIMATIC MV500
Operating Manual, 05/2019, C79000-G8976-C495-02
Default
Dynamic
Saved
Dynamic
Criss-cross
Criss-cross
Hor. (at all
points)/Vert.
Vert./Hor.
Hor. only
Vert. only
0
☑
Description
Error correction level in data matrix:
Saved:
•
– ECC200 code: If an ECC200 code is
saved, only codes based on ECC200
codes can be detected in processing
mode.
– For ECC ≠ ECC200: If a code is saved
with ECC ≠ ECC200, afterwards only
codes that are not ECC200-encoded can
be read.
ECC levels 000, 050, 080, 100, 120, 140
and 200 are supported.
Dynamic: The reader can decode a data ma-
•
trix with any standardized ECC level (000,
050, 080, 100, 140 or 200).
Code search method:
Criss-cross: The search begins at the center
•
point of the viewing field and continues alter-
nating between the horizontal and vertical di-
rection until the correct number of codes has
been decoded or the viewing field has been
searched through completely.
Hor. (at all points)/Vert.:
•
The reader begins at the center point of the
viewing field or the image and searches the
entire viewing field first in a horizontal 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.
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 code with a slightly
weaker contrast than that of the saved code can
nevertheless be decoded.
If "Allow quiet zone clutter" is enabled, the reader
can decode a code with interfering patterns in the
quiet zone. However, this may take longer.
Application
5.1 Program
71