The SLC 500 PLC family dominated automation control for well over thirty years and now, with the recent discontinuation of most of the series, we look at the…
The SLC 500 PLC family dominated automation control for well over thirty years and now, with the recent discontinuation of most of the series, we look at the differences between SLC and modern Logix PLCs.
The OPC UA protocol is designed to solve two problems in automation: interoperability between device vendors and…
The OPC UA protocol is designed to solve two problems in automation: interoperability between device vendors and independence from incompatible transport layer differences.
This article takes an in-depth look at how magmeters work, the different types of magmeters, and useful equations for…
This article takes an in-depth look at how magmeters work, the different types of magmeters, and useful equations for calculating flow rates using a magmeter.
Some terminology, like 'normally open' and 'normally closed' switch contacts, is common throughout industry but can still…
Some terminology, like 'normally open' and 'normally closed' switch contacts, is common throughout industry but can still be confusing, misleading, or even hazardous if not properly understood.
Before tuning a motion axis, you must define the axis. If the control system doesn’t understand the axis properties or…
Before tuning a motion axis, you must define the axis. If the control system doesn’t understand the axis properties or specifications, it can’t be expected to effectively complete the tuning process.
Embedded, modular, panel mount, distributed, machine mount, and remote, oh my! What does it all mean, and how are you…
Embedded, modular, panel mount, distributed, machine mount, and remote, oh my! What does it all mean, and how are you supposed to know which one to choose for your application?
Regardless of industry, codes and standards developed by organizations including ISO, ANSI, and IEEE are an integral part…
Regardless of industry, codes and standards developed by organizations including ISO, ANSI, and IEEE are an integral part of the environment in which we work and have a major influence on engineering and design.
Electrical grounding is used to accomplish several different tasks, but none more important than for the safety of users…
Electrical grounding is used to accomplish several different tasks, but none more important than for the safety of users and equipment while maintaining strict adherence to regulations.
Learn all about the power supply: modular and built-in devices that deliver electricity to the PLC backplane and modules,…
Learn all about the power supply: modular and built-in devices that deliver electricity to the PLC backplane and modules, and learn the difference between control and field device power delivery.
Some devices, like switches, are non-polar; you can connect them in either direction. What makes diodes so special, and…
Some devices, like switches, are non-polar; you can connect them in either direction. What makes diodes so special, and how can you tell the right way from the wrong way?
Besides using a Raspberry Pi or an Arduino Uno, a low-cost PLC can be built using the popular ESP32 microcontroller. The…
Besides using a Raspberry Pi or an Arduino Uno, a low-cost PLC can be built using the popular ESP32 microcontroller. The OpenPLC software supports this popular 32-bit platform.
Many online sources explain how to reverse a 3-phase motor; this article will discuss the electrical principles that…
Many online sources explain how to reverse a 3-phase motor; this article will discuss the electrical principles that define why it works and how the phase relationships determine the rotation direction.
No doubt you have heard all about the use cases of AI and predictive maintenance. Learn about the algorithms that are…
No doubt you have heard all about the use cases of AI and predictive maintenance. Learn about the algorithms that are actually used to provide analysis and insights based on industrial data sets.
In any process industry, transducers are the basic instrumentation unit for continuous monitoring of system variables…
In any process industry, transducers are the basic instrumentation unit for continuous monitoring of system variables that provide inputs for control system algorithms and outputs.
Predicting when maintenance should occur isn’t simply a matter of getting on board with the latest trend, it can save…
Predicting when maintenance should occur isn’t simply a matter of getting on board with the latest trend, it can save many thousands of dollars in lost downtime and unnecessary parts and labor.
While mathematical expressions are important in any programming language, the topic of math functions addresses not just…
While mathematical expressions are important in any programming language, the topic of math functions addresses not just the algorithms themselves, but the design of custom functions within Python.
Ensure efficient and safe industrial applications with proper valve sizing. Learn how to choose the right valve size and…
Ensure efficient and safe industrial applications with proper valve sizing. Learn how to choose the right valve size and avoid common pitfalls.
Building precise rotating or linear systems often costs a lot! When is it justified to spend the extra cost to design and…
Building precise rotating or linear systems often costs a lot! When is it justified to spend the extra cost to design and build such a system, and what are the different components and system types?
Two primary technologies are used for creating touchscreens. For industrial HMIs, resistive and capacitive methods both…
Two primary technologies are used for creating touchscreens. For industrial HMIs, resistive and capacitive methods both contain certain advantages for various applications.
Learn how to use ‘for loops’ in Python to create complex, iterable tasks such as modifying lists, combining lists…
Learn how to use ‘for loops’ in Python to create complex, iterable tasks such as modifying lists, combining lists into dictionaries, or iterating over a dictionary.