Posts Tagged ‘FOPDT’
Ask Dr Bob: How can I find dead-time with the FOPDT model?
Video Transcript: Hello, I’m Bob Rice. And in today’s episode, we’re going to continue our discussion of the FOPDT model, and how you can use it to describe the…Read More
Ask Dr Bob: What is the time constant and how do I calculate it?
Video Transcript: Hello, I’m Bob Rice. And in this episode, we’re going to continue our discussion on the fo PDT model for describing process dynamics and characteristics. Specifically, we’re…Read More
Ask Dr Bob: How to calculate the process gain?
Video Transcript: Hello, I’m Bob Rice. And in this episode, we’re going to continue our discussion of the process model for first order plus dead time systems. recall in…Read More
Ask Dr Bob: How can I model a process? What is the FOPDT model?
Video Transcript: Hello, I’m Bob Rice, and I’m the Head of Engineering for Control Station. Today we’re going to talk about process modeling and process dynamics. In fact, I’m…Read More
Pros and Cons of Higher Order Models
Modeling is a time-tested approach for decoding a process’ dynamic behavior. By understanding how a process responds to change it’s possible to apply an appropriate and timely counter measure. Two common applications of modeling are 1) PID controller tuning, and 2) process simulation.Read More
The Power of the FOPDT Model
If you’re a parent, then chances are you’ve encountered this dilemma: It’s the day after your son or daughter’s birthday and you’re now faced with the job of assembling gifts provided by friends and family. You can either ‘wing it’ with the hope of constructing each toy quickly or you can hunker down and follow the manufacturer’s step-by-step instructions. While ignoring the instructions and following your intuition seems like the faster option, most experienced parents know that those instructions represent a speedier solution which ultimately results in a happier child.Read More
How to Model a PID Loop
As stated in a previous post, tuning PID controllers is a multi-step process. After you gather your data from your step test, the next step in the process is fitting a model to your Process Data. Fitting a model involves the analysis of bump test data and the calculation of tuning parameters that are specific to both your controller and your control objective. This post highlights some industry best practices for fitting a model to your test data.Read More
How Do I Tune a PID Controller?
Techniques for modelling a process’ dynamics and calculating tuning parameters are widely available. These approaches enable practitioners to tune controllers consistently and with reasonable results. At Control Station we know a little about this topic as we’ve been sharing these techniques for decades and innovating software-based solutions that deliver even better results.Read More