Danfoss MCO 305 Design Manual page 145

MCO 305 Design Guide
__ APOSS Tools __
Derived Curve
If other curves have already been added, then curves can be added that are derived from those curves. The
derived curve will always be added to the "Curve Selection List" after the curve from which it is derived.
The following forms of derived curves can be added:
Derivative – This is the mathematical derivative (i.e. d/dx) of the original curve.
Delta – A "delta" curve will show the incremental differences along the original curve. Each point on the
curve will be the difference between the corresponding point on the original curve and the previous point on
the original curve.
Difference – A "difference" curve will be the simple difference (i.e. subtraction) between the values of two
original curves.
Bit Mask – If a curve value has an internal coding (e.g. multiple values packed into a single value), then this
curve will derive its data from bits extracted from the values of the original curve. For example, a mask of
000000FF will extract the low-order 8 bits from a 32-bit value.
Name
This is the name that will appear in the "Curve Selection List". The user should set this to some appropriate
name.
Color
This is the color that will be used to draw the curve. Use → Select to choose a different color.
Type
This is the type of derived curve to be added.
Base Curve(s)
Base Curve is the curve from which the new curve will be derived.
Second Curve - If the new curve is derived from two curves (e.g. a "difference" curve), then this will be the
second curve.
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