5.13. FUN

Purpose

To create a time-dependent signal.

Procedure

If the input signal is FALSE, the output signal is zero. If the input signal is TRUE, one of the following signals are output:

Sine	\(y=A \operatorname{Sin}\left(B\left(t-t_{\text {start }}\right)-C\right)\)
Parabola	\(y=A+\left(B+C\left(t-t_{\text {start }}\right)\right)\left(t-t_{\text {start }}\right)\)
Exponential	\(y=A e^{B\left(t-t_{\text {start }}\right)-C}\)

where is the time that the logical input signal became TRUE.

Parameters

Parameter	input	unit	range	default	remarks
Function	Sine/ Polynome/ Exp
A	real
B	real
C	real

Remarks

If no input signal is connected to the input channel a value of TRUE is assumed

Examples

Fig. 5.13.1 Example system

Fig. 5.13.2 Sine (input: A=1, B= 1, C=1)

Fig. 5.13.3 Polynome (input: A=20, B=-10, C=1)

Fig. 5.13.4 Exponential (input: A=1, B=0.5, C=2)

Fig. 5.13.5 Sine function (input: A=1, B= 1, C=1) controlled by a logical input signal