Reply To: PID

PID Tuner Forum Forums General PID Discussion PID Reply To: PID


Hi, Sadly your data is not correct, these are the issues:

  • Your data is undersampled. You need to sample faster so the process output response dynamics due to a step change in the process input are clearly visible.
  • Your output process curve does not seem to be correlated to your process output curve. I see no correlation between the input of the process and the output. Are you sure you have selected the correct variables in your data.

Take a look at the sample data provided by the tool, you can see a clear correlation between a step change in the input and a slow transitioning on the output to another level. This is what you should be able to see on your data.

Also make sure your PID is turned off during the experiment and that your process input is exactly what would get out of your PID and the process output is exactly what would get in to the PID.