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Feedback for Fluid Cylinders: Bang Bang Control

Feedback for Fluid Cylinders: Bang Bang Control

Tracking the position of a hydraulic or pneumatic cylinder is often accomplished at a basic precision level, detecting only end stop limits with discrete digital values… But what methods accomplish this?


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.


Introduction to Safety Light Curtains: Operation and Installation 

Introduction to Safety Light Curtains: Operation and Installation 

Light curtains serve as an invisible barrier, keeping workers out of harm's way and protecting machinery from damage. Learn about safety curtains, how they are installed, and their programmable functions.


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?


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. 


Control and Visualization of Power Plant Data Through SCADA Systems

Control and Visualization of Power Plant Data Through SCADA Systems

The control and visualization of power plant processes through SCADA improves the supervision, coordination, and security of the power system operations.


Ultrasonic Leak Detectors: Finding Leaks With Ultrasound

Ultrasonic Leak Detectors: Finding Leaks With Ultrasound

Pressurized gas leaks can sometimes be heard with the human ear, but small leaks with ultrasonic sounds are much more difficult to detect. Ultrasonic leak detectors can help to find otherwise undetectable leaks.


End of Arm Tooling: Power Sources and Sensors

End of Arm Tooling: Power Sources and Sensors

An EOAT, located at the end of an industrial or collaborative robot arm, is entirely customizable with nearly unlimited possibilities. Learn about the five main methods of how EOATs are powered and the sensors that they use.


 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!


3-phase Motor Types: Synchronous and Induction Motors

3-phase Motor Types: Synchronous and Induction Motors

In this article, we will take a look at the differences between synchronous and induction motors, as well as the two types of induction motors: squirrel cage and wound rotor.


Grounding for Control Transformers

Grounding for Control Transformers

Grounding transformer connections presents its own set of challenges. This article addresses these challenges and several common configurations for control transformer grounding.


What is Firmware, and Why is PLC Firmware Important?

What is Firmware, and Why is PLC Firmware Important?

Inside a controller, code is interpreted into the binary signals that influence input and output signals, flags and registers, and even the communication of network signals. This is the job of firmware.


Interrupting Dangerous Current Flow: Fuses vs. Circuit Breakers

Interrupting Dangerous Current Flow: Fuses vs. Circuit Breakers

Fuses and breakers are some of the most common safeguards to prevent electrical shock and fires. Learn about these two pieces of industrial equipment and the difference between slow blow and quick blow responses.


How to Program a Robot: Industrial Robotic Arm Coding Basics

How to Program a Robot: Industrial Robotic Arm Coding Basics

The world of manufacturing is filled with robots, but beginners are still always faced with key questions, starting with perhaps the most basic: how do you program industrial robots?


Understanding Centralization vs Decentralization of PLCs

Understanding Centralization vs Decentralization of PLCs

Centralized control systems are often seen as outdated compared to decentralized systems; however, both have their advantages and disadvantages when it comes to choosing which one to use in manufacturing. 


Negative Effects of Grounding (Earthing) a DC Power Supply

Negative Effects of Grounding (Earthing) a DC Power Supply

DC voltage systems exist to provide controllers and field devices with stable power, but it is not always clear when these systems should be bonded with the earth ground of the AC line voltage supply.


Understanding PLC Program Commands: Comparison Instructions

Understanding PLC Program Commands: Comparison Instructions

​​​​​​​We will show you how to recognize, utilize, and efficiently operate your comparison instructions in Rockwell Automation’s Studio 5000 and Automation Direct’s Productivity Suite to make your program flow smoothly.


Understanding PLC Program Commands: Trigonometry Instructions

Understanding PLC Program Commands: Trigonometry Instructions

We will show you how to use the basic trigonometry functions to build ladder logic in a PLC, allowing for a clean, well-organized, and easy-to-use code that allows you and other users to troubleshoot your programs.


Obsolescence in Control Systems - Disaster or Opportunity?

Obsolescence in Control Systems - Disaster or Opportunity?

One of the most considerable risks in aging control environments is that eventually, spare parts become obsolete and unavailable, and the lack of an upgrade plan can turn a simple failure into a catastrophe.