[Simulink] Help required with Simulink 's blocks FFT and PSD

Hello,

I am quite new to Simulink and I am trying to obtain a PSD plot of my measurements.

Please see below my Simulink Model.

My measurements were taken from a force sensor and is made of 8192 data point with a measurement period of 3.2sec.

I have the following error:

Do you know how I can solve this? and if possible to explain me what I did wrong.

Thank you

Ben

Simulink Model: http://imageshack.us/a/img87/798/simulinkmodel.jpg

Error message: http://imageshack.us/a/img545/162/simulinkerror.jpg

[Kaustubha Govind]

It doesn't look like the images exist at the links you posted.

[kawak]

I have updated the links

Thanks

Ben

[Walter Roberson]

Is the psd code your own function block? If so we are probably going to need to see the source.

[kawak]

Hi Walter,

No, I found the PSD block in Simulink Extras library under Additional Sinks.

Thanks

Ben