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Tutorial: Arduino and AutomationDirect Merged in the ProOpen PLC

Tutorial: Arduino and AutomationDirect Merged in the ProOpen PLC

Having separately covered Arduino’s microcontroller platforms and AutomationDirect Productivity PLCs, it’s time to take the wheel of the ProOpen, a PLC that combines modularity with C++ programming.


Beginner’s Guide to Automation: How to Choose the Right Project

Beginner’s Guide to Automation: How to Choose the Right Project

There are a lot of companies considering in-house automation or consulting with integrators for automated systems. But where do you start, and how do you even pick a project for automation?


What Is a ‘Valve Spool’ and How Do Spool Valves Work?

What Is a ‘Valve Spool’ and How Do Spool Valves Work?

Fluid control valves rely on the opening and closing of internal passageways to direct the flow of power. But what do they look like inside, and how do these ‘valve spools’ actually work?


Using a PLC to Track Data Within Automated Equipment

Using a PLC to Track Data Within Automated Equipment

There are a few options when it comes to tracking part data throughout a process or assembly of a machine. Follow along as we explain just a few of the more common methods.


Accelerating Pulp and Paper Processing with Advanced Process Control

Accelerating Pulp and Paper Processing with Advanced Process Control

Innovative pulp and paper operators are turning advanced process control, automated testing, and quality control system data into actionable business insights that improve operational efficiency all along the value chain.


Techniques for I/O Mapping in PLC Programs

Techniques for I/O Mapping in PLC Programs

I/O mapping is the process of converting raw input and output data into specific tags, but how can we find a method for mapping I/O that is both efficient and scalable?


Designing a Custom Machine Alarm System: From PLC to HMI

Designing a Custom Machine Alarm System: From PLC to HMI

Creating custom alarm systems can be complicated and overwhelming, but they can also be very beneficial for equipment builders and integrators. Follow along as we build a custom alarm handling system.


Setting up Discrete Sensors: Polarity, Mode, Range, and Limits

Setting up Discrete Sensors: Polarity, Mode, Range, and Limits

Installing sensors into a manufacturing process is intended to collect data, useful in making logical true/false decisions. But what settings must be adjusted when you install these sensors?


What is a Servo, and How do Servo Motors Work?

What is a Servo, and How do Servo Motors Work?

Servo motors are common in all kinds of motion control applications for various industries, but what are these devices, and what makes them different from standard AC or DC motors?


Turn a Raspberry Pi Into a PLC Using OpenPLC

Turn a Raspberry Pi Into a PLC Using OpenPLC

Using a Raspberry Pi and the OpenPLC software platform, create a simple PLC that can be programmed in ladder diagrams with remote access and I/O monitoring dashboards.


How to Wire Motor Starters and Contactors

How to Wire Motor Starters and Contactors

This article investigates the basic components and wiring conventions for common three-phase motor starter configurations, including direct online, reversing, and star-delta.


Motor Starter Wiring Infographic

Motor Starter Wiring Infographic

Complete wiring guide for 3-phase motor starters with and without overload (OL) relays.


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?


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?


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.


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.


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.