Process interfacing via an automation system (PLC, PC)
9.4 Control with FB 79
SIMATIC MV500
Operating Instructions, 06/2018, C79000-G8976-C494-01
145
Table 9- 46 Parameters not interconnected with the block (static local data)
Parameter
Declaration Data type
Address
(instance DB)
Default
Description
X_POSITION
STATIC
INT
34.0
0
X position of the center point of the code
relative to the center of the image. Normal-
ized to the full resolution for the current
image.
Y_POSITION
STATIC
INT
36.0
0
Y position of the center point of the code
relative to the center of the image. Normal-
ized to the full resolution for the current
image.
ROT_ANGLE
STATIC
INT
38.0
0
Roll angle of the code center point
INCLINE
STATIC
INT
40.0
0
Viewing angle
(angle between the axis of the optical read-
er and the surface of the code field)
CONTRAST_F STATIC
CHAR
42.0
..
Symbol contrast as class
(value valid if ≠ ' ')
GROWTH_F
STATIC
CHAR
43.0
..
Print growth as class
(value valid ≠ ' ')
NONUNIF_F
STATIC
CHAR
44.0
..
Axial non-uniformity as class
(value valid if not equal to ' ')
ERR_CORR_F STATIC
CHAR
45.0
..
Unused error correction
(value valid, if ≠ ' ')
Note:
If a "ReadErr" occurs, the old result data is
retained because no new data is available.
QUALITY_F
STATIC
CHAR
46.0
..
Overall quality as class
(value valid, if ≠ ' ')
CONTRAST
STATIC
REAL
48.0
-1.0e+0
Symbol contrast as absolute value
(value valid, if ≠ "
-1.0e+0")
GROWTH
STATIC
REAL
52.0
-1.0e+0
Print growth as absolute value
(value valid, if ≠ "
-1.0e+0")
NONUNIF
STATIC
REAL
56.0
-1.0e+0
Axial non-uniformity as absolute value
(value valid, if ≠ "
-1.0e+0")
ERR_CORR
STATIC
REAL
60.0
-1.0e+0
Unused error correction
(value valid, if ≠ "
-1.0e+0")