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Relays, Relays, and More Relays: 7 Kinds of Industrial Relays

Relays, Relays, and More Relays: 7 Kinds of Industrial Relays

Have you ever heard of a relay? Of course you have. There are many different kinds, plus hundreds of different trade lingo names. What are some of the most common, and how do we use them?


What is a Stepper Motor, and How Does it Work?

What is a Stepper Motor, and How Does it Work?

When the angle or distance of motion is more important than speed and power, certain motors shine brighter, like steppers, named for the individual steps they take when control voltage is applied.


A Better Fit: Comparing Electrical Systems vs. Pneumatic Systems

A Better Fit: Comparing Electrical Systems vs. Pneumatic Systems

Knowing what kind of control system to use: that’s a question that must be answered before setting up the factory floor. Why would someone choose pneumatic over electrical controls?


Teardown: What’s Inside a Solenoid-Controlled Safety Interlock?

Teardown: What’s Inside a Solenoid-Controlled Safety Interlock?

Safety devices have two main purposes, both of them meant for (you guessed it) safety. They protect both machine and operator from harm. But what’s inside, and how do these switches work?


How Do You ‘Megger’ a Motor? Understanding Motor Insulation Resistance

How Do You ‘Megger’ a Motor? Understanding Motor Insulation Resistance

Within motors, two very different types of resistance are evident. The resistance of the windings is measured with a normal multimeter. But what is insulation resistance, and how is it measured?


Electrical Drawings, Schematics, and Wiring Diagrams: How to Read Them

Electrical Drawings, Schematics, and Wiring Diagrams: How to Read Them

In order to trace control system problems to the core, the ability to read and interpret various resources, from facility-level diagrams to machine-level wiring layouts, is critical.


Understanding Single-stage vs. Multi-stage Pneumatic Devices

Understanding Single-stage vs. Multi-stage Pneumatic Devices

This article looks at vacuum ejectors and vacuum pumps, specifically outlining the difference between single and multi-stage versions of each type, and common applications.


How to Convert Numbers: Binary, Decimal, and Hex Systems

How to Convert Numbers: Binary, Decimal, and Hex Systems

Converting different numbering systems is quite common in PLCs and structured text codes. Why? Because people read decimals. Computers read binary. Processors read sets of bits. Not so simple.


What is a Fuse? The Skinny On Overcurrent Protection

What is a Fuse? The Skinny On Overcurrent Protection

Protecting equipment and personnel from overcurrent dangers, like sparks and fires, is the primary job of the humble fuse, one of the most basic, yet critical of all safety devices.


Data Flow Tutorial With Mage.ai | Part 6: Refined Data Presentation

Data Flow Tutorial With Mage.ai | Part 6: Refined Data Presentation

We conclude the data flow project with the step of developing a business intelligence dashboard to present machine data, at a reliable schedule, to a leadership or maintenance team.


Star-Delta Wiring for Reduced Voltage Starting of 3-Phase Motors

Star-Delta Wiring for Reduced Voltage Starting of 3-Phase Motors

Digital controls like VFDs and soft starts have advantages by elongating start time, but simple strategies for starting motors with a reduced current draw, like star-delta (or wye-delta) are common.


PLC Naming Conventions: How Should I Write My Tag Labels?

PLC Naming Conventions: How Should I Write My Tag Labels?

It’s important to consider your PLC tag naming convention when using different styles. Learn when and why you might even use more than one, depending on the circumstances and scope of your project.


What is a Circuit Breaker?

What is a Circuit Breaker?

We depend on circuit breakers all the time, even when you have a day off or work from home. These overcurrent protection devices keep machines running safely, reducing the risk of fires and arcing.


Understanding the 17xx | Your Rockwell/Allen-Bradley Hardware Encyclopedia

Understanding the 17xx | Your Rockwell/Allen-Bradley Hardware Encyclopedia

Rockwell Automation’s Allen-Bradley control hardware catalog has long included many series that start with 17xx, but what are these lineups, and what function do they serve?


What is a Variable Frequency Drive (VFD)?

What is a Variable Frequency Drive (VFD)?

When we need to change the speed of an industrial motor, whether to control a process or save energy costs, we turn to the variable frequency drive, better known simply as a VFD.


Strain Gauges: Real-World Considerations and Typical Applications

Strain Gauges: Real-World Considerations and Typical Applications

In this article, we will explore real-world considerations for strain gauge performance and typical applications. We’ll be talking about foil and wire strain gauges, but ignoring semiconductors.


Implementing an OpenPLC Visual Annunciator Flasher Using an Arduino

Implementing an OpenPLC Visual Annunciator Flasher Using an Arduino

A flasher can easily be implemented using interlocking timers in a PLC environment on an Arduino Uno using OpenPLC, UiFlow Blockly Code, and a programmable HMI-based LCD unit.


Info Byte: What Do NC and NO Mean?

Info Byte: What Do NC and NO Mean?

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.


Strain Gauges: Basic Operating Principles, Materials, and Properties

Strain Gauges: Basic Operating Principles, Materials, and Properties

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.


Data Flow Tutorial With Mage.ai | Part 3: Connecting to Google Sheets

Data Flow Tutorial With Mage.ai | Part 3: Connecting to Google Sheets

In this article, we will explore the inbound integration to the mage.ai pipeline, connecting to the spreadsheet data source using the Google Sheets API through a JSON credentials file.