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Tuning Rules for PI and PID

August 28, 2024/in Technical Notes

Tuning Rules for PI and PID Determining Which Controller to Use A key challenge in setting up a control system is determining what type of controller to use. The PID […]

MANTRA Advanced Process Control Software v6.0.0.2

July 25, 2024/in Press Releases

ControlSoft is pleased to announce the release of MANTRA Advanced Process Control Software v6.0.0.2. MANTRA v6.0.0.2 includes the following updates: I/O Array Blocks – Six new I/O Array blocks have […]

Tuning Rules for PI and PID

August 28, 2024/in Technical Notes

Tuning Rules for PI and PID Determining Which Controller to Use A key challenge in setting up a control system is determining what type of controller to use. The PID […]

MANTRA Advanced Process Control Software v6.0.0.2

July 25, 2024/in Press Releases

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Tuning Rules for PI and PID

August 28, 2024/in Technical Notes

Tuning Rules for PI and PID

Determining Which Controller to Use

A key challenge in setting up a control system is determining what type of controller to use. The PID controller is generally accepted as the standard for process control, but the PI controller is sometimes a suitable alternative. A PI controller is the equivalent of a PID controller with its D (derivative) term set to zero.

It is important to understand how controllers interact with each different type of process. For details, see Table 1.

Table 1 – How PI and PID Controllers Interact with Different Kinds of Processes

Controller	Pl Controller	PID Controller
Effective for These Processes	Fast processes, such as flow, pressure, and some temperature loops.	Slower processes, such as level and insulated temperature.
Tuning Parameters	P = Proportional I= IntegralPl controller is the equivalent of a PID controller with its D (derivative) term set to zero.	P = Proportional I= Integral D = DerivativeThe derivative term is particularly important for integrating processes, such as level, position, & well-insulated temperature.In general, using a derivative term can significantly increase the speed of the response of a non-integrating process and suppresses overshoot.
Response Speed	Response is slower, thus enabling a smooth and accurate PV change.	Response is faster, thus enabling setpoint to be reached more quickly.
Overshoot	Overshoot will likely occur.	Reduced or no overshoot.

Download the data sheet

MANTRA Advanced Process Control Software v6.0.0.2

July 25, 2024/in Press Releases

ControlSoft is pleased to announce the release of MANTRA Advanced Process Control Software v6.0.0.2. MANTRA v6.0.0.2 includes the following updates:

I/O Array Blocks – Six new I/O Array blocks have been added to the standard I/O block list. The blocks include Input Array (Boolean), Input Array (Integer), Input Array (Float), Output Array (Boolean), Output Array (Integer), and Output Array (Float).
Block Watch Window Automatic Tunable Upload – The tunable values edited from the Block Watch windows can now be uploaded automatically to the project database after updating the value in the Kernel.
OPC Device Status Detailed Dashboard – A detailed OPC Device information and connectivity status dashboard is now available in the Service Monitor Kernel icon.

For the full list of updates, please see the MANTRA Software 6.0.0.2 Release Notes, publication MN339C-EN, included with the software download.

Need help with advanced techniques for process control beyond basic PID control? Consider our Advanced Process Control Techniques training to learn about cascade control, override control, gain scheduling, feedforward compensation, and model-based control.

About ControlSoft

Since 1985, ControlSoft has been a global provider of platform-independent process control software and engineered solutions. Our products and services are sought by prominent companies in leading industries. By keeping a focus on improving plant availability, production efficiency, operational safety, and environmental compliance, we continue to deliver world-class control solutions for our customers.

Media Contact

Paul Botzman
pbotzman@controlsoftinc.com
phone 440-443-3900, ext. 101

MANTRA is a registered trademark of ControlSoft Inc.

Half Sized Blog Element (Single Author Style)

Half Sized Blog Element (Multi Author Style)

Tuning Rules for PI and PID

MANTRA Advanced Process Control Software v6.0.0.2

Tuning Rules for PI and PID

MANTRA Advanced Process Control Software v6.0.0.2

Full Sized Blog Element (Big Preview Pic)

Tuning Rules for PI and PID

Tuning Rules for PI and PID

Determining Which Controller to Use

MANTRA Advanced Process Control Software v6.0.0.2

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