Feb 16, 2015 - 11:11 AM
In PSCAD, functions can be defined by 3 way:
1) By output signal of other copmponents
2) By CSMF blocks
3) By MATLAB/Simulink
In the picture you attached, the analog signal is shown. Please note that you can implement function if you have mathematical equation of the function(signal).
If you have further questions, I and other contributors would be happy to know it.