Index in position 1 exceeds array bounds

I dont know where's the error in my block diagram. It always say that may index in position 1 exceeds array bounds. I dont know how to solve this. Please help me. Thank you

[madhan ravi]

Post the picture of the diagnostics error message along with the block it"S caused from.

Answer 1

[Walter Roberson]

Your turbine "Wind speed (m/s)" signal is fed from the port labeled (1) . There are a couple of signal splits that could potentially be providing input.

  (1)---+--->                   %LINE A
        |
--------+                       %LINE B
        |
        |________               %LINE C

The right of the one I have marked Line A is one-way into the Turbine Wind Speed (m/s) signal, so it cannot be a signal source.

If you follow the one I marked as Line B left it feeds into the Pitch Angle Controller1 as the input signal Wind Speed, and so cannot be a signal source either.

If you follow the bottom line I have marked as Line C then you ca nsee it proceeds over to the upper-right scope as an input there. Therefore that branch cannot be a signal source either.

That leaves just the port (1) as the signal source. And in turn that means you cannot run the model without having some other model providing data onto port (1).