PID Tuner

Apply the latest insights in control engineering in a click of a button

8.7/10 (31 ratings)

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PID Tuner interface

Using the PID Tuner, you can tune the PID optimally in both open and closed-loop (while it runs), without any risk, i.e. production quality is not affected.

The PID Tuner tunes a PID controller based on a model of the system or process it needs to control. This model is obtained from actual data of your machine/system. The procedure to obtain such a model is referred to as identification.


Supports both on-line and off-line mode.

In on-line mode, the data is obtained in real-time through OPC DA communication. These data are automatically stored within the project file.
In off-line mode, you can import data from files (csv format).

Offline mode

In the offline mode .csv files can be imported. We require one column for time, one for the PID output (MV), one for the controlled variable (PV) and one for the setpoint (SP). Optionally, you can import PID settings, ‘disturbance’ variables, and other process variables, for additional advanced features, such as feedforward simulation and design. In offline mode, there is no limit to the sample period (may even be nanoseconds!).

Online mode

If you have an OPC DA server running, the PID tuner can directly connect to it. You can select the tags for PV, MV and SP and their values will be logged automatically to an SQLite database (inside the PID Tuner software). Also, you can perform bump experiments in realtime from the interface of the PID Tuner. The PID Tuner comes with an OPC server for Arduinos, but not for other brands.

Extensive Model Identification Options

The PID tuning requires a System Model, and this model is usually obtained from data (model identification). The PID Tuner does not only support identification of the First Order Time Delay (FOTD) models, but also (Second Order Time Delay) SOTD models.

First Order Delay Time Model

For most process models this model is a good starting point since it is simple; it is also suitable for pure integrating systems, in which case the time constant will be large with respect to the time delay (the ratio will be > 10). If needed, you can capture MIMO dynamics as well. Identify the model by simply pushing a button to fit it to ‘measured’ data. Watch the match between the model and data in the interactive display. Our robust algorithms adjust the model parameters automatically to create the best fit to data. Alternatively, type in model parameter values yourself and observe immediately how they affect the fit.

Second Order Delay Time Model

In some cases you need a Second Order Time Delay model. For instance, to capture a controlled systems that responds ‘slowly’ first (hockey stick response). The model is then likely to have a smaller time delay than an FOTD model. Since the time delay is the only limit on performance, you will see that the PID can be tuned much ‘tighter’ in such a case. Another case where an SOTD model is needed is when the system has badly damped dynamics.

Supports tuning of all PID types

Supports all PID types, among which DeltaV, Siemens, Omron, Rockwell , Yokogawa. Different vendors use different PID types. Therefore, we included all options: the parallel form, direct form, proportional band format and setpoint weight parameters. Scaling parameters, often not published, are found by automatic fitting. The PID Tuner supports tuning not only the P, I and D constants but also setpoint weighting.

Select your PID Type

The PID Tuner allows you to select the PID type used by your vendor. We support the standard, series, interacting, parallel, and ideal form.

Prevent Overshoot

Most vendors include the option to apply setpoint weighting, and settings these right avoids overshoots after a setpoint change. The PID Tuner allows you to quickly find the optimal setpoint weights.

Select one of three tuning methods

Choose one of three proven tuning methods:

  1. SIMC
  2. FDRC
  3. Global Minimisation of the variance.

Each method has its own merits, and you learn quickly which, by just clicking them.


PID Tuner Trainer

PID Tuner Business


FOTD/SOTD Model Simulation



Closed Loop Model Simulation



Model Fitting

Autofit FOTD/SOTD model parameters



PID Tuning

Simulate PID controller



Simulate Setpoint Weighting (anti-overshoot)



Simulate Output Limits



Simulate Feedforward Controller



Simulate Decoupling Controller







Autofit interacting FOTD/SOTD models


Simulate multiple interacting loops


Data Import

Import .csv or .txt file


Autofit FOTD/SOTD on imported data


Online Connectivity

Connect to OPC server


Live Trending



Support with tuning 1 loop


Optional 2 hours training



On Request

Customer Reviews

4.8 out of 5 stars (based on 5 reviews)
Very good20%

Simple and affordable Loop Tuning tool

October 27, 2023

PID loop tuning is a complicated operation. Analytical tuning techniques require a mathematical model of the controlled process and a series of calculations to derive the PID parameters.

There are many tuning techniques and software available in the market. But PID-tuner is a powerful software package with affordable cost for performing the loop tuning activities.

Also, PID-tuner will Identify the model by simply following few steps and pushing few buttons. We as control engineer can visualise the match between the model and existing parameter in the tool display. The display looks great.

P Kannan

Powerful tool for loop tuning

July 5, 2022

PID Tuner is a powerful, user friendly and easy to use tool with trusted output data. We are very satisfied with PID Tuner’s performance, PID Tuner is a great help in complex analysis and tunning for PID controllers especially in Power Generation

Rodrigo Ruiz

From theory to practical implementations

October 13, 2021

Currently testing out the PID tuner in combination with Siemens PCS7 DCS. The program makes finding the right tuning parameters really easy. Specially to document the changes made to the PID tuning in EMOC, you can show the difference before and after.

The method to find the correct PID method used works perfect. Once you know the method for your PID controller you can easily define it later on.

They are also open to further improvements with the software and I look forward to see those improvements.

All in all a good products which only can get better!

Rob Lensen

Quick and accurate loops

January 21, 2021

We were in the market for a software that would help us decrease the time it took to tune loops on our projects. This software definitely did that for us. Not spending hours fine tuning loops has helped us be more competitive and get our customers projects online quicker.

David Smush

Very good results for loops that were in manual for years

September 15, 2020

Very well explained course with plenty of practical examples of loop tuning. We saw some very good results on loops that were in manual for years.

C. Murphy

Frequently Asked Questions

  1. Does the PID tuner work with my PLC / DCS of brand name xxx?
    • The PID Tuner can work with any brand. When using it in offline mode, it needs data in Excel CSV format, or ASCI text format. In online mode, the PID Tuner acts as OPC DA client that can communicate with any brand.  
  2. What is the price of the PID Tuner?
    • Please send us an email to ask for a quote. The price includes training by a control expert (of approx. 1-2 hours in total) and one year support.
  3. Are there ongoing costs for the PID Tuner?
    • No, you pay once for an eternal license.
  4. Can the PID Tuner be used on multiple sites?
    • The PID Tuner license is fixed to a single PC on which you have install it.
  5. What does the PID Tuner training involve?
    • This training is a hands-on training. In the first online meeting, we explain what you need to do and how it works and give an assignment to work on. This assignment consist of gathering data while you are performing a safe experiment on a PID loop, without changing the PID settings. Then, you send us your result of the exercise and in a second meeting, we provide feedback on your work and ask you to go on to the next step, until you have succeeded in tuning with the PID Tuner.

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