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Industrial Networks: “Protocol over a Standard?”

Industrial Networks: “Protocol over a Standard?”

Industrial communication channels often contain terms such as ‘Modbus over RS485’ or ‘CIP Safety over Ethernet’. What does it mean to send one network over another, and how does it work to your advantage?


PLC Program Commands: Arrays Part 3, Searching and Sorting

PLC Program Commands: Arrays Part 3, Searching and Sorting

Learn how to streamline your ladder logic by searching and sorting arrays with the FSC and SRT instructions in the Rockwell (Allen-Bradley) Studio 5000 programming software.


Teardown: What’s Inside a Variable Frequency Drive (VFD)?

Teardown: What’s Inside a Variable Frequency Drive (VFD)?

Variable frequency drive units can be found inside tons of control cabinets, but what happens if you disassemble one to see what’s inside and how it works? We did just that. The results might surprise you.


Know Your Phase: How and When to Use a Motor and Phase Rotation Tester

Know Your Phase: How and When to Use a Motor and Phase Rotation Tester

Connecting a new motor without knowing the phase rotation of the electrical supply can cause damage to expensive equipment. By using a 3-phase rotation meter, you can save yourself time and money.


Introduction to Network Routers for Industrial Applications

Introduction to Network Routers for Industrial Applications

Network routers are designed to route and pass information between a system of connected computers and devices. Learn about the role of routers in industrial applications and how to properly maintain them.


What You Need to Know: Variable Frequency Drives (VFDs)

What You Need to Know: Variable Frequency Drives (VFDs)

With precise control abilities to manage speed, torque, and direction, variable frequency drives remain one of the most common methods of driving 3-phase industrial motors. Below, we introduce a few leading VFD manufacturers.


PLC Program Commands: Performing Array Functions Part 1

PLC Program Commands: Performing Array Functions Part 1

Arrays can streamline data storage and math operations, but they can be difficult to understand for a beginning programmer. Learn the background of array instructions in the Rockwell Studio 5000 software.


Introduction to Servers for Industrial Applications

Introduction to Servers for Industrial Applications

Servers are vital to the flow of information in and around organizations, acting as a hub for information transfer and storage. Learn about the role of servers in industry and the potential challenges that come with maintaining them.


 Omron PLCs - A Hardware History

Omron PLCs - A Hardware History

With the first fuzzy logic-based controllers on the market in 1983, learn how the Japanese-born automation company, Omron, adopted fuzzy logic as a basis for the design of its current PLCs.


Differences Between a Programmable Logic Controller (PLC) and a Remote Terminal Unit (RTU)

Differences Between a Programmable Logic Controller (PLC) and a Remote Terminal Unit (RTU)

Despite the many overlaps, PLCs and RTUs are two different devices, each with specific suitable applications.


Robot Collision Recovery and Prevention

Robot Collision Recovery and Prevention

When a robot crashes, it needs to be put back into position. The steps in this process depends on the end user and the equipment manufacturer. Understanding why the robot crashed also helps prevent future failures.


Understanding NPN vs PNP for Sensors and Devices

Understanding NPN vs PNP for Sensors and Devices

You are bound to encounter two terms associated with sensors and some loads: ‘NPN’ and ‘PNP’. You must understand the relationship between the field device and the control module in order to choose and install components properly when needed.


Managing Multi-user PLC Programming: Git Version Control

Managing Multi-user PLC Programming: Git Version Control

PLC and other automation project software can be easier and more efficient to update and maintain thanks to the introduction of Git control, already a staple for typical programming of large-scale projects.


Info Byte: The Mystery of Ice Cube Relays–Coil Polarity

Info Byte: The Mystery of Ice Cube Relays–Coil Polarity

Relay and other coil devices pose a few confusing questions: How can the relay still work if you connect a DC supply in reverse? How can an alternating voltage attract and hold the load consistently?


Historical Figures: Joseph von Fraunhofer and His Impact on Production Systems

Historical Figures: Joseph von Fraunhofer and His Impact on Production Systems

In honor of October 3rd, National Techies Day, Control Automation is excited to celebrate the works of Joseph von Fraunhofer. Well-known for his contributions in optics, Fraunhofer also made lasting contributions in manufacturing and production systems.


Why is 4-20 mA Current Used for Industrial Analog Sensors?

Why is 4-20 mA Current Used for Industrial Analog Sensors?

Industrial analog sensor devices primarily use 0-10 volt or 4-20 milliamp. For those mA signals, learn the reasons for why the lower and upper limit standards were determined as 4 mA and 20 mA.


Industrial Control Panel Design Standards and Best Practices

Industrial Control Panel Design Standards and Best Practices

Industrial control panels are at the heart of control systems. Learn about the standards and regulations that dictate industrial control panel design for safety and efficiency, including NFPA 70, UL 60947-4-1, and NFPA 79. 


Humidity Measurement Basics: Relative Humidity, Sensors, and Applications

Humidity Measurement Basics: Relative Humidity, Sensors, and Applications

Humidity control is vital in many industrial applications. We'll take a look at nine different humidity measurement technologies, how they are used, and discuss the difference between relative humidity and dew point.


Uncontrolled Machine Vision Lighting for Infrared and Robots

Uncontrolled Machine Vision Lighting for Infrared and Robots

Ambient light, reflection, and transparent objects can all cause difficulties during machine vision applications. Learn about these issues and some potential solutions to better ensure safety and quality.


 PLC Program Commands: Arrays and Pointers

PLC Program Commands: Arrays and Pointers

The ability to utilize an array effectively is a fundamental skill in becoming a PLC programmer, but it can also be very complex and difficult to master. Let’s do a run-down of arrays and some of their complexities!