Latest Process Control and PID Technical Articles

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Loop Powered Process Displays to Add Easy Measurements

Have you ever needed to know the temperature, pressure, flow, or other measurement on location, but the readout is way off in the control room? Here’s an easy way to add a readout in the field.

October 03, 2023 by Harry Trietley

PLC Programming With Function Block Diagrams

Function block diagram (FBD) programming is a common language for PLCs following the IEC 61131 standard. What is FBD, and how does it differ from the familiar ladder logic programs?

August 29, 2023 by Shawn Dietrich

Small-Scale Automation Projects: Setting the Table for Raspberry Pi

Automation can be inexpensive for small projects by using development boards. This article presents a walkthrough of the setup and installation steps for the popular Raspberry Pi.

August 27, 2023 by Michael Levanduski

Optimizing Single-Run PLC Bits and Tasks for Startup Processes

Programmable Logic Controllers (PLCs) are designed as an endlessly-looping program, examining all lines of code as rapidly as possible. Following are a few critical tips for when programmers only need to run a series of single operations at startup.

August 21, 2023 by David Peterson

Three Things About IO-Link Sensors That May Shock You

Control.com’s Director of Engineering got to explore IO-Link sensors and what he found might surprise you! Although still considered an “emerging” technology, it’s clear IO-Link technology boasts several bonafide benefits over traditional sensors.

August 15, 2023 by David Peterson

What You Need to Know: Soft Starters for Industrial Motors

Driving motors is one of the most fundamental automation tasks, but understanding and selecting the proper motor soft starter for your application may require more investigation than you thought.

August 01, 2023 by Shawn Dietrich

Understanding the Automation Lingo: PLC, PAC, RTU, DCS, and SCADA

What are these terms, PLC, PAC, RTU, DCS, SCADA? Why are they so important to industrial robotics and automation? Explore how each different piece functions to build a comprehensive automated system.

July 31, 2023 by Damond Goodwin

Examples of Analog Signals in Control Systems

Many articles address the wiring and implementation of analog control signals, but where are they used, and what might make them a better (or perhaps worse) decision than digital input/output devices?

July 25, 2023 by Gunner Scott

Examples of Digital Signals in Control Systems

Digital signals hold a prominent position due to their compatibility with computers. But what are digital signals, and what are some examples of the various devices used with digital inputs and outputs?

July 18, 2023 by Gunner Scott

PID for Your PLC Using SP and PV. So Many Acronyms, So Little Time

Implementing PID control in a PLC is far more complicated than textbooks would make it appear. There is more to the process than simply picking gain (k) values and calculating an output value.

June 19, 2023 by David Peterson

Temperature Profiling: The Process and The Underlying Benefits

Temperature profiling is an effective tool to monitor thermal properties in process equipment. This article defines temperature profiling, discusses the process components, and describes the various benefits it offers.

June 13, 2023 by Muhammad Asim Niazi

Closing the Loop: Feedback, Feedforward, and Adaptive Control

Process automation relies on precise control systems to operate production equipment for everything from lumber to pastries. Using control algorithms produces stable, accurate, and often delicious results.

June 05, 2023 by Shawn Dietrich

Understanding PLC Tags: Controller Scope vs. Program Scope

Is it best to ‘controller scope’ or ‘program scope’ your tags? This is the question asked by many new PLC programmers, and it often comes down to personal preference.

May 31, 2023 by Shawn Dietrich

Connectors Used in Industrial and Robotic Cable Termination

Industrial and robotics cabling requires specialized termination strategies. This article introduces connectors involved in automation applications for cable-to-cable or cable-to-device termination.

May 30, 2023 by Simon Mugo

Electronic Datasheet (EDS) Files: Why do We Use Them?

Many control product manufacturers offer these downloadable ‘EDS files’ for peripheral equipment, but what exactly is an EDS, and how can they aid in the development of a project?

December 28, 2022 by David Peterson

Proportional Gain and Proportional Band Explained

Learn about proportional gain and proportional band, two key proportional control concepts, to better understand the most popular control system method in industrial automation.

November 01, 2022 by Antonio Armenta

Raspberry Pi Applications in Industrial Automation

Though not a direct replacement for PLCs, Raspberry Pi has the potential to be used in industrial automation applications for prototyping, embedded systems, and as a low-cost process controller.

September 29, 2022 by Antonio Armenta

Thermocouple Types: Which One Is Right For You?

There are many considerations when selecting a thermocouple type. In this article, we look at the advantages, and limitations, of the eight standard thermocouples and various installation considerations.

August 17, 2022 by Harry Trietley

Linear Position Sensors - Control is Only as Precise as the Feedback

Linear position sensors are used in electrical and fluid-actuated motion devices. They allow extremely precise position, velocity, and acceleration control, and provide feedback to ensure product quality and tolerance compliance.

April 14, 2022 by Seth Price

Introducing the Split-Range Time-Proportioning Instruction

A useful but often overlooked instruction included in Allen-Bradley ControlLogix and CompactLogix PLCs for heating and cooling.

November 19, 2021 by Dennis Lynch