How do I output an array from my level 2 S Function? Please help!

Hi there,

I have a S function that takes arrays as inputs from an excel file and does computations using the arrays. The ultimate result in the S function block is a Nx1 array. I have tried assigning the Nx1 array to the sFunc.OutputPort(1).Data, but it gives me error saying I am attempting to assign a length N vector to a length 1 vector.

I want to be able to output the array and feed it into another S function in Simulink and to a scope to plot the data against another array (time).

Any help would be greatly appreciated！

Thanks!

[Ryan G]

Are you attempting to use the variable, N, to assign the length of the array or a number?

Answer 1

[Kaustubha Govind]

Have you configured block.OutputPort(1).Dimensions to N?

[Chuhong]

Hey Kaustubha,

I tried defining block.OutputPort(1).Dimensions to -1 (inherited or dynamic) and also to N, but it still doesn't work. It shows the same error message.

[Kaustubha Govind]

What is the S-function output connected to? Is it a block that is expecting a scalar somehow? Try connecting it to an Outport block to make sure that there is no backward propagation happening.