how to run simulations of MIMO models having direct feedthrough, using the control and simulation loop?

[tomcruize79]

say i have the MIMO model of a system in transfer function as

4s + 4       0

10s+1

                                =   G(s)

0             3s + 3

               10s+1

this model has direct feedthrough. how do i run simulations of to say, a 2 step inputs?

I don't get any output signals. please, see attached VI file.

thank you.

[Pete.Dunc]

Hi tomcruize79

Thanks for using the forums!  Sorry for the delay in getting back to you - how have you been getting on with this?

One thing to note is that you can use the Signal Generator VI to generate a function as an input.  Try this with your model and let me know how you get on.

[tomcruize79]

problem solved... i got directly intouch wth a support engineer. solution was a patch to correct a glitch in LabVIEW 2010 Control Design toolkit.

thanks!