JUMO 705020 mTRON T - Analog Input Module, 4-Ch. Operating Manual - Manual (Page 57)

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7 Configuration – in setup program only
7.1.2 Formula
Customer-specific linearization is specified using a 4th order polynomial. The polynomial is cal-
culated for the entire linearization range.
Polynomial formula: y = X4*x
4
+ X3*x
3
+ X2*x
2
+ X1*x + X0
Setup dialog
Parameter
The co-domain of the linearization (linearized values, y-axis) is checked in the module and
limited as follows:
Co-domain lower limit = Ymin - 0.0125 × (Ymax - Ymin)
Co-domain upper limit = Ymax + 0.03125 × (Ymax - Ymin)
Parameter Selection/settings Description
Measuring range
start (Ymin) -99999 to 0 to +99999 Start value of the y-axis
Measuring range
end (Ymax) -99999 to 100 to +99999 End value of the y-axis
X0 -99999 to 0 to +99999 Absolute component of the polynomial
(point of intersection with the y-axis)
X1 -99999 to 1 to +99999 Coefficient of the linear component (x)
X2 -99999 to 0 to +99999 Coefficient of the quadratic
component (x
2 )
X3 -99999 to 0 to +99999 Coefficient of the cubic component (x
3
)
X4 -99999 to 0 to +99999 Coefficient of the quartic component (x
4
)