Simulation data storage- help

Hello, I want to store the steady state value of output signal(as displayed in display block) in mat file and get it displayed in the command window. I am using sim command to run the simulation. When I use the 'to file' block, it stores struct or array of signals, How to store only steady state value, and get it displayed in command window? Alos. how to use mat file?? Please help.

Thanks & Regards- Anuj

[Anuj]

It would be great, if I get any suggestion.. Thanks

Answer 1

[Anuj]

What I did is I used 'to workspace' block instead of 'to file' and stored the variable in array format then var(end) solved my problem.. It was easy :)

Answer 2

[Ilham Hardy]

Say:

• Your filename is 'untitled.mat' and located in your current folder
• Variable name stored is 'var_1'
• The "To File" block is connected to single input (no Mux)

Solution:

After simulation, run commands below in the Command Window

load untitled
var_1(2:end)

Remarks:

• You only want to show steady-state value which in this case the last value (simulation time -wise)
• var_1 is 2xn matrix, the first column contains t_sim and second clumn contains var_1 value

[Anuj]

Hello IIham, Thanks for your answer, but how do i assign a name to the output variable? in the mat file, its just stored as data:1.

[Ilham Hardy]

I am still assuming that this is still has to to do with Simulink model output :)

In the simulink model, you can double click the applicable "To File" block to edit the .mat filename and assign unique output/variable name. And then you have to re-run the simulation.

[Anuj]

Thanks Again, but still I am not getting my desired output as the variable (as suggested by you - var_1(2:end)) is shown as 1x1 double timeseries in workspace. I want only the final value to be stored and displayed.

[Anuj]

Thanks IIham for your help, that didnt work effectively.. I got a different way though :) Your answer deserves a vote.