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2 formula, 7 configuration – in setup program only – JUMO 705020 mTRON T - Analog Input Module, 4-Ch. Operating Manual User Manual

Page 57

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57

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

)