Use LabVIEW FPGA to control a pendulum with motor

[ChenzheXiao]

Hi everyone!

I'm controlling a pendulum with motor at the end using myRIO and LabVIEW. My topic is based on previous students' work. They built the pendulum and designed controllers with Simulink. I transfered the Simulink PID controller to LabVIEW and used the parameters in the Simulink PID controller. 

However, when I was running the Labview program, the response was not like the simulation results in Simulink. For example, when I was setting the angle of pendulum to 3, the simulation result should be 3 degree in a short time, but the actual pendulum controlled by labview is about 20-30 degrees. 

Can anyone help me to find the error or difference between Labview and Simulink program? 

Thank you very much!

Kind Regards

Chenzhe Xiao

[herringbone]

I don't know how simulink works, but its probably a lot different than LabVIEW. What is your expected output from your LabVIEW code?

[cbutcher]

I'm also not familiar with Simulink, but since this year MATLAB and LabVIEW are slightly more friendly with one another.

Taking a look at the Model Interface Toolkit (readme) might be useful if you're able to use 2019.

The notes describing the changes are here: NI-MathWorks Collaboration, Running Compiled Simulink Models in LabVIEW and in VeriStand.