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Understanding Fiber Optic’s Role in Photoelectric Sensing

Photoelectric sensors and fiber optic sensors are very similar in a lot of ways, but which one is superior in function and durability, and under what conditions might one be preferred?

September 21, 2023 by Shawn Dietrich

Origin Story: Meet Unimate, the First Industrial Robot

Most commercial control technologies have fascinating histories, especially industrial robots. Here’s the story behind the development of Unimate, the world’s first.

September 06, 2023 by David Peterson

PLC Programming: Best Practices for Function Block Diagrams

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.

September 05, 2023 by Shawn Dietrich

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?

August 09, 2023 by David Peterson

Explaining User-Defined Data Types for PLC Programming

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.

August 08, 2023 by Shawn Dietrich

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.

August 07, 2023 by Dr. Don Wilcher

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?

July 25, 2023 by Gunner Scott

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.

July 24, 2023 by Seth Price

Examples of Digital Signals in Control Systems

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?

July 18, 2023 by Gunner Scott

Simulating Ladder Logic Programs in GX Simulator2 With Mitsubishi PLCs

GX Simulator2 is one of MELSOFT’s essential tools for the simulation of programs in a virtual PLC and works with GX Works2. Learn how to virtually simulate and test your ladder programs.

June 18, 2023 by Bob Odhiambo

Back to the Basics: Understanding Industrial Buttons and Switches

This article features an in-depth discussion of the various options for buttons and switches, including function, styles, shapes, and illumination options for all kinds of control panel inputs.

May 18, 2023 by Shawn Dietrich

Introduction to Mitsubishi PLC - FX Series and MELSOFT GX Developer

Mitsubishi's FX series PLC is one of MELSOFT GX Developer’s most popular automation solutions for small and medium-scale applications. Learn how to use GX Developer software to program the FX series PLC.

May 10, 2023 by Bob Odhiambo

The Mechanic’s View of Control: Belt Drives

Rubber belts have lived under the hood of nearly every car since they first took to the streets, but they also transmit power through all kinds of industrial machine drives as well.

May 09, 2023 by David Peterson

Vibration Sensors For Use In Condition Monitoring

Vibration sensors measure the mechanical vibration of an object, making it possible to monitor machines for early signs of failure to prevent costly and dangerous breakdowns.

May 09, 2023 by Antonio Armenta

How To: Simple Programming with AutomationDirect Productivity PLCs

AutomationDirect’s Productivity line of PLCs is known for cost-effectiveness and ease of use. Learn how to build and download a simple program using discrete input and output ladder commands.

May 03, 2023 by David Peterson

Ladder Logic for the Arduino Opta PLC: Creating Your First Program

Arduino’s Opta mini PLC platform is supported by the new PLC IDE. Learn to create and download your first program and take advantage of built-in I/O for an easy introduction to the platform.

April 05, 2023 by David Peterson

What’s This Standardized Code for Information? Funny You Should ASCII

ASCII is a familiar acronym, found in applications like Modbus communications and string data types—but what is it, and what does ASCII mean for automation engineers?

March 29, 2023 by David Peterson

Field-oriented Control (Vector Control) for Brushless DC Motors

Field-oriented control (FOC), also called vector control, can control 3-phase alternating current motors and brushless DC motors. Read more to learn its advantages, how it works, and its best applications.

March 19, 2023 by Damond Goodwin

Introduction to Industrial Sensors

Industrial sensors can be found in nearly every modern industrial process, regardless of complexity. Learn the history, evolution, and variety of sensors that make manufacturing the modern marvel we see today.

March 16, 2023 by Antonio Armenta

Introduction to Basic Three-Phase Motor Control Circuits

Large motors require a circuit to turn on and off. This may be as simple as a single on/off drum-type switch or as elaborate as a VFD unit. Learn about some common control circuit designs for typical three-phase motor requirements.

February 26, 2023 by David Peterson