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Explaining User-Defined Data Types for PLC Programming

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.


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.


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.


Fundamentals of Directional Control Valves in Fluid Control Systems

Fundamentals of Directional Control Valves in Fluid Control Systems

Directional control valves (DCVs) come in many shapes and sizes for pneumatic and hydraulic applications. Learn to distinguish the different configurations and the meaning of external markings.


Examples of Digital Signals in Control Systems

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?


Mechanisms Used in Robotic Compliance Devices

Mechanisms Used in Robotic Compliance Devices

Compliance and compensator devices are used in processes where variation and uncertainty are prevalent. What sorts of compliance devices are used, and what distinct advantages are held by each?


Tutorial | First Program Using Rockwell’s Micro800 Series PLC

Tutorial | First Program Using Rockwell’s Micro800 Series PLC

Rockwell Automation’s Micro800 series is the modern replacement for some older MicroLogix PLCs. Learn how to get started with basic I/O, plus timers and counters, to build your own programs in a snap!


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.


Simulating Ladder Logic Programs in GX Simulator2 With Mitsubishi PLCs

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.


CIP Safety and Its Applications to Robotic Installations

CIP Safety and Its Applications to Robotic Installations

Industrial robots are becoming safer and more economical by utilizing safety signals over Ethernet networks via CIP safety technology.


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 and Robotic Connectors: Choosing Suitable Contacts for Cable Connections

Industrial and Robotic Connectors: Choosing Suitable Contacts for Cable Connections

Selecting a suitable electrical connector is a process that is based on how you will terminate it to the system. This article provides advice on how to make the right contact selection for your industrial or robotic system.


Methods and Algorithms in Error Checking for Serial Communications

Methods and Algorithms in Error Checking for Serial Communications

Errors in communications often manifest as a result of electrical noise interrupting the data during the transmission process, leading to various methods for determining whether received data has been damaged.


5-Point Guide To Set Up A Lean Production System

5-Point Guide To Set Up A Lean Production System

The Lean process uses a method of implementation focusing only on actions providing value to customers. The following five steps break down the process into discrete modules when introducing efficiency to production.


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.