Siemens SIMATIC MV500, Руководство по эксплуатации

Страница: 70 / 148

Application
5.1 Program
SIMATIC MV500
70
Operating Manual, 05/2019, C79000-G8976-C495-02
5.1.4.10 Decoder options (standard)
The following parameters apply for reading and verification of DMC with the standard
decoder.
Table 5- 46 Standard
Parameter Possible values Default Description
Polarity
•
Saved
• Dynamic
Dynamic Polarity
•
Saved: If dark code is saved on light back-
ground, the reader can read dark code on light
background faster. The same is true for in-
verse polarity, that is, light codes on dark
background.
• Dynamic: Any code polarity is read, regardless
of whether the saved code was dark on light
background or light on dark background.
Dimension
•
Saved
•
Dynamic
Dynamic Number of rows and columns:
•
Saved: The reader decodes the data matrix
faster only if a data matrix has the same num-
ber of rows and columns as the saved code.
• Dynamic: The reader can decode a data ma-
trix if the number of rows and columns differs
from the saved code.
Size
• Saved
•
Dynamic
Dynamic Height and width of the code in the image:
• Saved: The reader decodes the data matrix
faster if a data matrix has a size similar to that
of the saved code.
•
Dynamic: The reader can decode the data
matrix if a data matrix is considerably larger or
smaller than the saved code.
Aspect ratio
• Saved
•
Dynamic
Dynamic Ratio of width to height of the code in the image.
This is used only if "Dynamic" is set for the size.
•
Saved: The reader decodes faster a data
matrix with the same "aspect ratio" as the
saved code.
• Dynamic: The reader can decode a data ma-
trix with a different "aspect ratio" from the
saved code.
Orientation
•
Saved
•
Dynamic
Dynamic Turning the code in the image:
• Saved: The reader decodes a data matrix with
a roll angle similar to the saved code faster.
•
Dynamic: The roll angle is not limited. The
reader can decode a data matrix regardless of
the turning.