ARX Model Simulation - Error -41263

[PiDi]

Hello

I'm trying to simulate an ARX model using System Identification pallete. I don't like to write too much about my problems when one VI can explain everything - so there it is, in attachment 😉 "Model Simulation.vi" works well, while "Model Simulation PtByPt.vi" gives me error -41263 (System Identification Toolset:  The System Identification Toolkit cannot retrieve the data in system model because the model type you wire in is incompatible with the system model requirements).

Can anybody tell me what am I doing wrong?

Just for reference: there was once similar topic, but unfortunately it didn't provide any answers at all: http://forums.ni.com/t5/LabVIEW/system-identification-error-41263/td-p/886077 .

[Zody · Accepted solution]

Hello,

I believe this error is caused because the Model Simulation Ptbypt VI expects an State Space model rather an ARX.

I've tested with State Space model and it works fine.

Kind regards,

Ion R.

[PiDi]

That is correct, it accepts only State-Space model. It would be good if I could read this in documentation, not by asking here or by clicking inside the actual VI...