underspecified signal dimension from simulink model

Hi ,

i got this error code while trying to run the simulink model

Simulation

1

Clear

04:34 PM Elapsed: 0.365 sec

Compilation of model 'lab' failed while trying to resolve underspecified signal dimensions.

Suggested Actions

Enable 'warning' or 'error' diagnostics for the list of underspecified signal dimensions.Open

Caused by:

• Error in default port dimensions function of S-function 'lab/Subsystem/MATLAB Function1'. This function does not fully set the dimensions of output port 2

Component:Simulink | Category:Block diagram error

the code for the fucntion 1 is as follows :

function [lam1 , lam2p]= magnetic (i1, i2p)

La=1/((1/Lm1)+(1/Ll1)+(1/Ll2p));

lamm=La+((lam1/Ll1)+ (lam2p/Ll2p));

i1 = (1/Ll1)*(lam1-lamm);

i2p = (1/lam2p) * (lam2p-lamm);

Lm1, Ll1, Ll1m Ll2p, lam1, lam2p are part of a previous user define function.

[Joe Jones]

Dear

Have you solved this problem? I also have the same problem recently. If possible, please help me. Thank you!

@wilson tan

Answer 1

[Daro VAN]

Hi!

Have you solved the problem? I have the same problem. I put the IC block before the function, the simulation doesnt show any error,but the divergence happened in my case. Maybe you can try to do so. Kindly Let's me know if you have found different approach.