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Understanding Industrial Ethernet Connections: RJ45, Fiber, M12, and SFP

Understanding Industrial Ethernet Connections: RJ45, Fiber, M12, and SFP

Ethernet switches can use four different types of connections: RJ45, fiber, M12, and SFP. Understanding the difference can help with network troubleshooting, design, or alteration.


Accelerometers and Gyroscopes: Understanding The Metrics of Motion

Accelerometers and Gyroscopes: Understanding The Metrics of Motion

Many sensors, like prox, optical, and ultrasonic, are familiar to control engineers. More and more modern devices are incorporating advanced motion profiles requiring motion sensing in many axes.


Understanding RMS and True RMS for Meters and Mechanical Measurements

Understanding RMS and True RMS for Meters and Mechanical Measurements

Electrical and mechanical measurements are often labeled with "RMS" and "True RMS." Aside from the simple math definitions we learned in electronics class, why is this distinction actually important?


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.


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?


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.


Robotics-as-a-Service (RaaS): What Is It and Why Would You Want It?

Robotics-as-a-Service (RaaS): What Is It and Why Would You Want It?

Traditionally, automation requires a sizable investment and integration risks. RaaS empowers manufacturers to let someone else adopt the risks in exchange for an hourly or monthly subscription rate.


Create Your Own IIoT Tech Stack Project | Part 7: Integrating Data With Database

Create Your Own IIoT Tech Stack Project | Part 7: Integrating Data With Database

As we approach the conclusion of this IIoT project, we’ll explore the integration of the Mosquitto MQTT broker, Node-RED, and InfluxDB, leaving only the data dashboard setup for the final step.


Create Your Own IIoT Tech Stack Project | Part 6: Node-RED Development

Create Your Own IIoT Tech Stack Project | Part 6: Node-RED Development

This article will explore the setup of Node-RED, the glue that will serve to connect all of the individual components of the solution that we have created up to this point.


Pulse Frequency Modulation (PFM): It’s Not PWM, But Related

Pulse Frequency Modulation (PFM): It’s Not PWM, But Related

Every so often, a new data format comes along, and we first consider that it might simply be a mistake in typing. Pulse Frequency Modulation (PFM) is not brand new, but still unknown to many engineers.


Using Loop Powered Isolators to Solve Ground Loop Problems

Using Loop Powered Isolators to Solve Ground Loop Problems

Many signal sources and process transmitters do not include isolation, which can cause problems when the instruments are at different locations. A loop powered isolator is often the solution.


Raspberry Pi Sense HAT Joystick Controls and Event-Based Programming

Raspberry Pi Sense HAT Joystick Controls and Event-Based Programming

The Raspberry Pi 4 Sense HAT add-on can be used to control output events based on feedback from sensors, and the built-in joystick can be used to trigger those events.


Raspberry Pi Sensors: Sense HAT Temperature, Pressure, and Humidity

Raspberry Pi Sensors: Sense HAT Temperature, Pressure, and Humidity

Explore the sensors used to obtain temperature, pressure, and humidity for industrial applications on this value-packed, compact add-on for the Raspberry Pi.


Ethernet Ports on Controllers: How Many, and What do They Do?

Ethernet Ports on Controllers: How Many, and What do They Do?

Some controllers and network devices have one port, while others have two. Why is there a difference, and what advantages does having two network ports actually provide?


PLC Programming With Function Block Diagrams

PLC Programming With Function Block Diagrams

Function block diagram (FBD) programming is a common language for PLCs following the IEC 61131 standard. What is FBD, and how does it differ from the familiar ladder logic programs?


A Tale of Two Standards | Comparing Analog Voltage and Current

A Tale of Two Standards | Comparing Analog Voltage and Current

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?


Small-Scale Automation Projects: Setting the Table for Raspberry Pi

Small-Scale Automation Projects: Setting the Table for Raspberry Pi

Automation can be inexpensive for small projects by using development boards. This article presents a walkthrough of the setup and installation steps for the popular Raspberry Pi.