Evaluate function real-time in Simulink

Hy,

I have the following function in Simulink, which i would like to evaluate for all X, Y values in real-time.

The inputs for X and Y are real time values, changing with sample time, PX and PY are column vectors, which i am searching the optimal point in, LAD is a constant value.

The function searches the point exactly as far from X, Y as the value of LAD and would give it back through GX and GY in real time, but shows me the following error:

The function ports are shown here:

How can I get this done?

Thank you for your help in advance.

Gergely Hunyady

Answer 1

[Fangjun Jiang]

Open the MATLAB function, click "Edit Data", specify the "size" of output GX and GY. Most common is the change from "-1" (inherient) to "1" (scalar).

[Gergely Hunyady]

Hy,

This should solve some problem, but even if the output is accepted, real-time calculation would not happen.

I will solve this with S-Functions, just need to understand how it works, for example NumDiscStates

Gergely Hunyady