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AutomationDirect Offers Free PLC eBook Download

AutomationDirect Offers Free PLC eBook Download

AutomationDirect’s new eBook, “PLC Handbook: A Practical Guide to Programmable Logic Controllers” is now available as a free download. Designed as an easy-to-read guide for users new to PLCs, this eBook explains what a PLC is and its history. It also provides detailed information about what to look for when choosing a controller, with both ... Read More
 
What is a PLC?

What is a PLC?

PLC Definition Programmable Logic Controllers (PLC) are often defined as miniature industrial computers that contain hardware and software used to perform control functions. More specifically, a PLC would be used for the automation of industrial electromechanical processes, such as control of machinery on factory assembly lines, amusement rides, or food processing. They are designed for multiple ... Read More
 
History of the PLC

History of the PLC

The PLC or Programmable Logic Controller has revolutionized the automation industry. Today PLCs can be found in everything from factory equipment to vending machines, but prior to New Year’s Day 1968 the programmable controller didn’t even exist. Instead what existed was a unique set of challenges that needed a solution. In order to understand the ... Read More
 
PLC Hardware

PLC Hardware

What controls you? No, I’m not talking about your boss, your spouse or the government. Instead, think of your body as an industrial control system. Now, what controls you? Hopefully, you said your brain, although the heart is an acceptable answer sometimes. But for now, let’s focus on the brain and the nervous system as ... Read More
 
Ladder Logic Instructions – The Basics

Ladder Logic Instructions – The Basics

In Understanding Ladder Logic we touched on the origins of Ladder Logic, its structure and execution. So now that we have a understanding of what Ladder Logic is, we can dig a little deeper into how ladder instructions work. And to do that, we need to first understand Boolean math and logic gates. Now, this blog ... Read More
 
PLC Communications – Coming of Age

PLC Communications – Coming of Age

PLC communications has grown and changed over the many years since the controller’s inception decades ago. Industrial needs and technological advances have kept PLC communications evolving, and this post will explore some past and present communication standards, and what the future may hold. PLC Partners in Communications PLCs need to communicate to a number of different ... Read More
 
Portable Water Treatment Platform Removes Phosphorus Economically

Portable Water Treatment Platform Removes Phosphorus Economically

A trailer-mounted water treatment process controlled by a Productivity2000 PLC has recently been developed at the University of Idaho. Professor Greg Möller, in the College of Agriculture and Life Sciences, along with engineers from the College of Engineering have teamed up to build the platform, and to further research the economical removal of phosphorus from various ... Read More
 
Why Engineers Need PLC Training

Why Engineers Need PLC Training

Ok, I have a question for you: what do American flags, hot dogs and sparklers have in common? Give up? Well, besides every Fourth of July ever, they all use automation in some way during the manufacturing process. Automation is everywhere and has taken a pivotal role in today’s industrial age making many companies dependent ... Read More
 
What is Ladder Logic?

What is Ladder Logic?

PLCs have exploded in the controls market and are used throughout the world. Over time they have advanced to become more user friendly, efficient, smaller and less expensive. Different types of programming languages have also been developed for PLCs but the most frequently used is still Ladder Logic.     The Origins of Ladder Logic – ... Read More
 
5 Reasons for In-House PLC Knowledge

5 Reasons for In-House PLC Knowledge

Managers and business owners everywhere are always looking for ways to keep operating costs down to stay viable in a highly competitive world. And for many industries, automation has become that way. Investing in a control system application can provide lower operational costs and therefore higher bottom lines. But your return on investment can be ... Read More