4 OPERATION CONTROL PROGRAMS
4.8 Data Control
161
4
■When the input value is between two points of scaling conversion data
The output value is calculated from the nearest two points of the input value.
N: Number of points
■When the input value is not between two points of scaling conversion data
The output value is calculated from the first or last two points of scaling conversion data.
N: Number of points
When the input value is outside the range of scaling conversion data or calculation result of output value is
outside the range of -32768 to 32767, an operation error will occur.
Positive conversion Inverse conversion
X
0
X (Input value) X
N-1
Y
0
Y (Input value) Y
N-1
Positive conversion Inverse conversion
X (Input value) < X
0
Y (Input value) < Y
0
X
N-1
< X (Input value) Y
N-1
< Y (Input value)
X
Y
×
(X - X
i
)
Y = Y
i +
Y
i+1
- Y
i
X
i+1
- X
i
Input value: X
(X
0
, Y
0
)
(X
i
, Y
i
)
(X
i+1
, Y
i+1
)
(X
N-1
, Y
N-1
)
Output
value: Y
X
Y
×
(Y - Yi)
Input
value: Y
Output value: X
(X
0, Y0)
(X
i, Yi)
(X
i+1, Yi+1)
(X
N-1, YN-1)
X = X
i +
Xi+1 - Xi
Yi+1 - Yi
×
(X - X
0
)
X
Y
Y
1
- Y
0
X
1
- X
0
(Y < Y
0
)
Y = Y
0
+
Output value: Y
Input value: X
(X
0
, Y
0
)
(X
1
, Y
1
)
X
Y
X = X
0
+
X
1
-
X
0
Y
1
-
Y
0
×
(Y - Y
0
)
(X < X
0
)
Input value: Y
Output value: X
(X
1
, Y
1
)
(X
0
, Y
0
)
X
Y
Output value: Y
Input value: X
(X
N-2
, Y
N-2
)
(X
N-1
, Y
N-1
)
Y = Y
N-1
+
Y
N-1
- Y
N-2
X
N-1
- X
N-2
×
(X - X
N-1
)
(Y
N-1
< Y)
X
Y
(X
N-1
, Y
N-1
)
(X
N-2
, Y
N-2
)
Output value: X
Input value: Y
X = X
N-1
+
X
N-1
- X
N-2
Y
N-1
- Y
N-2
×
(Y - Y
N-1
)
(X
N-1
< X)
To Next Page
Loading...
