Some terminology, like 'normally open' and 'normally closed' switch contacts, is common throughout industry but can still be confusing, misleading, or even…
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.
For being no more than a thin piece of metal, the strain gauge is a versatile measurement tool, from small switches to…
For being no more than a thin piece of metal, the strain gauge is a versatile measurement tool, from small switches to multi-ton machines. In this article, learn the operating principles and properties.
When inputs or outputs stop working, the equipment fails to respond and money starts slipping away. Dive into the concept…
When inputs or outputs stop working, the equipment fails to respond and money starts slipping away. Dive into the concept of troubleshooting I/O without ever opening the PLC software.
Pressures are always rising and falling in fluid systems. Sometimes the changes are extreme and lead to damage. What…
Pressures are always rising and falling in fluid systems. Sometimes the changes are extreme and lead to damage. What causes problematic pressure changes, and how can you trace them to their source?
In the world of mechanical power transmission, gears, belts, and chains dominate the landscape, but what's so special…
In the world of mechanical power transmission, gears, belts, and chains dominate the landscape, but what's so special about chain drives, and why would they be used in place of rubber belts?
Hydraulic cylinders and actuators can quickly move heavy objects and provide strong clamping forces. But when they break…
Hydraulic cylinders and actuators can quickly move heavy objects and provide strong clamping forces. But when they break down, the effects can be catastrophic and the repairs costly and timely.
There are two types of winding designs inside three-phase industrial motors: Wye and Delta. Although the motors and…
There are two types of winding designs inside three-phase industrial motors: Wye and Delta. Although the motors and connections look similar on the outside, this article discusses the internal construction for Delta wound motors.
An overview of HMI data types, input controls, output indicators, and message functions, the building blocks used to…
An overview of HMI data types, input controls, output indicators, and message functions, the building blocks used to construct informative and appealing HMI applications.
A PLC can be placed in Run or Stop, or occasionally Program mode, usually through physical or virtual methods. But what…
A PLC can be placed in Run or Stop, or occasionally Program mode, usually through physical or virtual methods. But what do these modes mean, and when should they be used?
Function block diagrams can be a useful tool, but they can also add a lot of complexity. Learn about the what, when,…
Function block diagrams can be a useful tool, but they can also add a lot of complexity. Learn about the what, when, where, and why of function block diagram (FBD) programming.
Analog voltage and current are the dominating standards for industrial technology. Is one format better than the other?…
Analog voltage and current are the dominating standards for industrial technology. Is one format better than the other? And if so, why do both signal types still exist in modern systems?
Control.com’s Director of Engineering got to explore IO-Link sensors and what he found might surprise you! Although…
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.
Understanding the building blocks of s-domain analysis and magnitude response theory can go a long way in helping…
Understanding the building blocks of s-domain analysis and magnitude response theory can go a long way in helping engineers predict how and why some system design choices are made over others.
Some workplaces are more dangerous than others, not because of the practices, but rather the products. Where do…
Some workplaces are more dangerous than others, not because of the practices, but rather the products. Where do explosions occur, and what practices exist to reduce such risk for equipment and workforce?
User-defined data types (UDTs) are a powerful and useful tool when applied to their full advantage. However, misused,…
User-defined data types (UDTs) are a powerful and useful tool when applied to their full advantage. However, misused, they can become problematic and introduce roadblocks to troubleshooting and upgrading PLC programs.
Triggering a machine by an external event often requires a pulse timer for OpenPLC Pulse Timer control. Here’s a brief…
Triggering a machine by an external event often requires a pulse timer for OpenPLC Pulse Timer control. Here’s a brief tutorial on how an M5Stack Core can offer a simple, effective low-cost Arduino OpenPLC HMI solution.
What are these terms, PLC, PAC, RTU, DCS, SCADA? Why are they so important to industrial robotics and automation? Explore…
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.
Many articles address the wiring and implementation of analog control signals, but where are they used, and what might…
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?
Using the right motor for the right task is critical - but what happens if the motor is connected to the wrong supply? It…
Using the right motor for the right task is critical - but what happens if the motor is connected to the wrong supply? It is never recommended, but important to quickly understand symptoms of incorrect wiring.
Digital signals hold a prominent position due to their compatibility with computers. But what are digital signals, and…
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?