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Understanding PLC Program Commands: One-Shots

Understanding PLC Program Commands: One-Shots

Many PLC commands are well-known to programmers, including contacts, coils, timers, and counters. But a less-common instruction is the one-shot, capable of harnessing the incredible processing speeds in a CPU.


Clarifying Misconceptions About Theoretical vs Physical Circuits

Clarifying Misconceptions About Theoretical vs Physical Circuits

Control engineering is integrally woven together with electricity and electrical circuits. Even so, sometimes the most basic scenarios become misunderstood through lack of training or experience.


Obsolescence in Control Systems - Disaster or Opportunity?

Obsolescence in Control Systems - Disaster or Opportunity?

One of the most considerable risks in aging control environments is that eventually, spare parts become obsolete and unavailable, and the lack of an upgrade plan can turn a simple failure into a catastrophe.


Allen-Bradley PLCs - A Hardware History

Allen-Bradley PLCs - A Hardware History

Credited with coining the name ‘PLC’, Allen-Bradley and parent company Rockwell Automation are major players in the world of control systems. Learn how the hardware platforms have evolved into the familiar modern configurations.


Control.com Will be Attending Automate 2022

Control.com Will be Attending Automate 2022

The reappearance of the Automate show in Detroit is an opportunity to witness some of the most innovative, exciting technology displays from manufacturers around the globe. If you see us, stop and say hello!


News Jun 05, 2022 by David Peterson
Invertek Drives Expands its German Operations into the DACH Region

Invertek Drives Expands its German Operations into the DACH Region

Invertek, a global manufacturer of VFDs for single and three-phase motors, announces its investment plans for growing business in Germany and expanding operations into other areas in Europe.


News Jun 01, 2022 by Stephanie Leonida
Power for Control Circuits: It’s Not Just Power Supplies

Power for Control Circuits: It’s Not Just Power Supplies

Power supplies tend to get a reputation as one of the most important power considerations of a DC control circuit - but we can’t ignore other key players: power filters, converters, and backup power modules.


Controlling Hydraulic Devices with Open and Closed Loop Systems

Controlling Hydraulic Devices with Open and Closed Loop Systems

What if you could control the end position and the speed of a hydraulic actuator accurately with just a simple signal? Some systems use simple open/close valves, but others require far more precision.


Control.com Announces Control Automation Day 2022!

Control.com Announces Control Automation Day 2022!

Control Automation Day 2022 will be on June 21st, focusing on PLC systems, packed with keynote addresses, educational live sessions, and exciting giveaways from your favorite manufacturers!


News May 18, 2022 by David Peterson
SGN and ULC Technologies Unveil World’s First Robotics Roadworks System

SGN and ULC Technologies Unveil World’s First Robotics Roadworks System

SGN and ULC Technologies introduce their all-electric autonomous robot for road and infrastructure repair, the Robotic Roadworks and Excavation System, which is set to begin UK trials in Epsom, Surrey.


News May 16, 2022 by Stephanie Leonida
Contactors versus Relays - Differences and Applications

Contactors versus Relays - Differences and Applications

Although the are similarities in operating theory, relays and contactors are used in industrial circuits for different specific applications, and should not be used interchangeably.


The Cat’s Out of the Bag - Demystifying Network Cables

The Cat’s Out of the Bag - Demystifying Network Cables

What’s the difference between a Cat 6 and a Cat 6a cable, anyhow? Ethernet cables must meet certain performance standards, and these standards can be quite confusing at first glance.


Comparing Mechanical vs Hydraulic Forces

Comparing Mechanical vs Hydraulic Forces

In honor of May the 4th, Star Wars Day, we compare the sources and applications of the two most common force-delivery systems - mechanical and hydraulic.


Siemens SIMATIC PLCs - Hardware History

Siemens SIMATIC PLCs - Hardware History

In the first article of this series, we investigate Siemens as a major PLC manufacturer, learning about the hardware, software, and key applications of each product lineup.


US DoC Appoints 27 Board Members to the National AI Committee

US DoC Appoints 27 Board Members to the National AI Committee

The United States Department of Commerce has appointed 27 new members to the National AI Advisory Committee (NAIAC).


News Apr 27, 2022 by Seth Price
Dynamic Braking Resistors for Motor Control Applications

Dynamic Braking Resistors for Motor Control Applications

Large DC and AC motor drives often provide terminals for installing a braking resistor. What are these resistors, and how do they slow down a machine? What hazards and cautions must be considered?


Introduction to Safety Relays

Introduction to Safety Relays

Redundancy and safety are often seen together in industrial safety systems. Safety relays monitor emergency devices to switch contacts based on status - but what makes them different from normal relays?


Industrial Protocol Standards and The IEC

Industrial Protocol Standards and The IEC

This article covers the prominent IEC 60870 standard for SCADA in electrical power systems, as well as background information on the International Electrotechnical Commission (IEC), the publishing organization.


Web-Based Industrial HMIs: What’s The Difference?

Web-Based Industrial HMIs: What’s The Difference?

With the increasing appearance of “web-based” HMIs, we investigate these devices, learn how they differ from the graphical HMIs, and see implications for our modern control system architecture.


Control Techniques Launches VFD With App-Based Commissioning Tools

Control Techniques Launches VFD With App-Based Commissioning Tools

Commander S series of variable frequency drives from Control Techniques enables parameter upload and download as well as performance monitoring through secure NFC, app-based communication.


News Apr 13, 2022 by David Peterson