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What Does ‘Explosion Proof’ Mean, and Who Should Care?

What Does ‘Explosion Proof’ Mean, and Who Should Care?

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?


Creating a Low-Cost OpenPLC Pulse Timer Function Block HMI with an M5Stack Core

Creating a Low-Cost OpenPLC Pulse Timer Function Block HMI with an M5Stack Core

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.


Beginner’s Guide to Programmable Encoders

Beginner’s Guide to Programmable Encoders

Programmable encoders provide engineers real flexibility to adjust process parameters. From operating theory to programming methods, here’s everything you need to know to begin leveraging these handy devices.


What You Need to Know: Soft Starters for Industrial Motors

What You Need to Know: Soft Starters for Industrial Motors

Driving motors is one of the most fundamental automation tasks, but understanding and selecting the proper motor soft starter for your application may require more investigation than you thought.


Understanding the Automation Lingo: PLC, PAC, RTU, DCS, and SCADA

Understanding the Automation Lingo: PLC, PAC, RTU, DCS, and SCADA

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.


Examples of Analog Signals in Control Systems

Examples of Analog Signals in Control Systems

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?


Potential Problems Arising from Misuse of Motor Phase Wiring

Potential Problems Arising from Misuse of Motor Phase Wiring

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.


Troubleshooting and Testing Single Phase AC Motors

Troubleshooting and Testing Single Phase AC Motors

Single-phase motors are common in household and small industrial devices. They are a bit more complex than 3-phase models, so it’s important to recognize failure modes and common symptoms.


Stepper Motor Control for Mitsubishi’s FX Series PLCs

Stepper Motor Control for Mitsubishi’s FX Series PLCs

Stepper motor control can be useful for motion applications. Learn the circuit connection and programming instructions for implementing stepper motor control using GX Works 2 on MELSEC FX-Series PLCs.


Going Against the Flow | Reversing Single-phase Industrial Motors

Going Against the Flow | Reversing Single-phase Industrial Motors

Three-phase motors are a backbone of the modern industrial control landscape. But plenty of applications still rely on single-phase motors. Can these types of motors be reversed, and if so, how?


PID for Your PLC Using SP and PV. So Many Acronyms, So Little Time

PID for Your PLC Using SP and PV. So Many Acronyms, So Little Time

Implementing PID control in a PLC is far more complicated than textbooks would make it appear. There is more to the process than simply picking gain (k) values and calculating an output value.


Controlling and Troubleshooting Common DC Motors

Controlling and Troubleshooting Common DC Motors

Direct current (DC) motors have existed since the late 19th century. What sets these motors apart from AC models, how do you control them, and how can you tell when it’s time to repair or replace them?


Industrial Robot End-of-Arm Tooling Comparison and Selection

Industrial Robot End-of-Arm Tooling Comparison and Selection

Most grippers are powered by either air or electricity. Learn about the questions and factors an engineer should consider to make the best decisions while selecting a gripper to use for unique applications.


How To: Using Set/Reset Instructions in Mitsubishi’s MELSEC PLCs

How To: Using Set/Reset Instructions in Mitsubishi’s MELSEC PLCs

Setting and resetting a PLC output is essential in establishing a holding circuit for a transducer. Learn how to use set/reset instructions in MELSOFT series GX Works2 to latch and release an output.


Closing the Loop: Feedback, Feedforward, and Adaptive Control

Closing the Loop: Feedback, Feedforward, and Adaptive Control

Process automation relies on precise control systems to operate production equipment for everything from lumber to pastries. Using control algorithms produces stable, accurate, and often delicious results.


Introduction to Transfer Functions for Control System Analysis

Introduction to Transfer Functions for Control System Analysis

Transfer functions allow systems to be converted from non-algebraic time measurement units into equations that can be solved, but how do these functions work, and why do we use them?


Introduction to System Dynamic Responses

Introduction to System Dynamic Responses

System dynamics is primarily concerned with understanding complex systems’ behaviors over time. Mathematical and computer models can help identify responses before turning to costly real-world experiments.


Joystick Controls: How Do You Use Them For Automated Systems?

Joystick Controls: How Do You Use Them For Automated Systems?

We usually think of joysticks in terms of video game controllers, but they exist in all kinds of industrial systems: heavy equipment, overhead cranes, and even some robotic controls. But how do they work?


Building a Temperature Controller Simulator Using OpenPLC and an Arduino

Building a Temperature Controller Simulator Using OpenPLC and an Arduino

Variable control allows external conditions, like temperature, to be monitored so the controller can activate devices to heat or cool the system as needed. Simulate a temp controller with low-cost components!


Understanding Wire Color Codes for Industrial Electrical Applications

Understanding Wire Color Codes for Industrial Electrical Applications

Designing, installing, and maintaining control systems involves a lot of wires. Each wire has a purpose, often indicated by the color of the insulation. But what are the common colors, and what do they mean?