SIMPLORER User Manual V6.0 - FER-a

Component Outputs
2D Lookup Table
SIMPLORER 6.0 — Manual 287
Description [Unit] Parameter Name Data Type
Sine Wave VAL real
Current Frequency [Hz] FREQ real
>>Basics>Tools>Time Functions
The function allows the definition of wave forms from a set of fixed data points with linear interpolation
between them (straight lines from point to point) or rectangular lines between
them (two orthogonal lines from point to point, which are parallel to the coordinate axes).
The X values of the data-pairs must be monotonous rising. The last slope is effective for all
values outside the X range. If you want to have a constant value outside the X range, you have
to define two data-pairs with the same Y value at the end.
Table representation Graphical representation
The time T values in the data file are be matched exactly, because of the simulator’s internal
step size algorithms. The next value of T=T+dt are used for the computation.
The simulator tries to match all values of a data set exactly. Very large data sets (e.g., from
an measuring instrument) cause a reduction in the simulator speed. If possible, reduce the
data sets to a required minimum to decrease simulation time.
The function LOOKUP(X,Y) provides the Y value of a given X value. LOOKUP(XY1.VAL,5) ->
Y value of the characteristic XY1 for the X value 5.
2D Lookup Table with Interpolation
yi ( + 1)
– yi ()
yt () = yi () + ---------------------------------- t lies in the i-th interval
ti ( + 1)
– ti ()
2D Lookup Table without Interpolation
yt () =
yi () for t() i ≤ t≤( i+ 1)
t lies in the i-th interval