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Virtual LAN for IT/OT Nodes in Industrial Control Systems

Virtual LAN for IT/OT Nodes in Industrial Control Systems

Virtual networks can connect or isolate various local control networks through configuration of a managed switch. Why would we use VLANs, and how can you segment a network switch to create a VLAN?


Ignition SCADA Software: What are Tags and How are They Used?

Ignition SCADA Software: What are Tags and How are They Used?

An introduction to the various tag types used within one of the leading supervisory control and data acquisition (SCADA) software powering IIoT, HMI, and I4.0 applications: Ignition by Inductive Automation.


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.


Connectors Used in Industrial and Robotic Cable Termination

Connectors Used in Industrial and Robotic Cable Termination

Industrial and robotics cabling requires specialized termination strategies. This article introduces connectors involved in automation applications for cable-to-cable or cable-to-device termination.


Developing Standardized Practices for PLC Programming

Developing Standardized Practices for PLC Programming

Any kind of computer programming can be challenging to determine what aspects are truly unique versus what aspects should be standardized across projects and platforms to streamline future development.


A Hands-on Walkthrough of MQTT Protocol Using the paho-mqtt Open Source Library

A Hands-on Walkthrough of MQTT Protocol Using the paho-mqtt Open Source Library

No more IIoT buzzwords! This article aims to walk through an implementation of MQTT using the paho-mqtt library using nothing more than your local machine and some simple Python programming.


Leveraging IIoT and Energy Measurement Tools for Machine Optimization

Leveraging IIoT and Energy Measurement Tools for Machine Optimization

Analytics from data algorithms can predict machine failures and provide diagnostics—but what should we measure? Then, once the information has been collected, what trends might point to problems?


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

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?


Addressing Common Industrial IoT Cybersecurity Risks For Control Systems

Addressing Common Industrial IoT Cybersecurity Risks For Control Systems

Addressing cybersecurity threats introduced by IIoT technology and devices can quickly seem overwhelming. However, an understanding of the risks can lead to some straightforward countermeasures.


An Engineer Explains the Hexadecimal and Octal Number Systems

An Engineer Explains the Hexadecimal and Octal Number Systems

Computers understand values as long strings of binary bits, but we humans convert them to other systems for convenience. Decimal makes sense, but what about hexadecimal and the lesser-known octal systems?


What’s the Difference Between an Electronic Data Sheet and Add-on Profile?

What’s the Difference Between an Electronic Data Sheet and Add-on Profile?

Using an electronic data sheet or add-on profile is an easier method than having to manually configure and map a generic Ethernet module. Learn about the differences between an EDS and AOP and how and when each is used.


Introduction to Single Pair Ethernet (SPE)

Introduction to Single Pair Ethernet (SPE)

Industrial Ethernet is getting a facelift, but will the industry adopt this new change? Single Pair Ethernet (SPE) offers gigabit speeds with a reduced footprint. When is it used, and where?


Introduction to Modbus and Modbus Function Codes

Introduction to Modbus and Modbus Function Codes

Modbus is one of the oldest industrial communication protocols still in use today. Continue reading to find out how the protocol works and how to use it for monitoring and control.


Understanding RS232 Serial Communication Message Formats

Understanding RS232 Serial Communication Message Formats

There are many settings and configurations to consider when using RS232 devices. This article breaks down this communication standard and explains how to send messages from one device to another.


Not Just Another IIoT Article: MQTT for Pneumatic Cylinder Maintenance

Not Just Another IIoT Article: MQTT for Pneumatic Cylinder Maintenance

IIoT is a daunting topic due to ambiguous interactions of hardware and software. This article outlines the basic steps to use an MQTT broker to collect the number of cycles from a pneumatic cylinder for PM software.


Electronic Datasheet (EDS) Files: Why do We Use Them?

Electronic Datasheet (EDS) Files: Why do We Use Them?

Many control product manufacturers offer these downloadable ‘EDS files’ for peripheral equipment, but what exactly is an EDS, and how can they aid in the development of a project?


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?


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.


Understanding and Using Safe Torque Off (STO) for Motion Systems

Understanding and Using Safe Torque Off (STO) for Motion Systems

Safety is one of the most critical aspects of machine design. Today, with network connections between different machines and control centers, safety signals must be shared logically and reliably across networks.


What You Need to Know: Unmanaged Switches for Industrial Ethernet

What You Need to Know: Unmanaged Switches for Industrial Ethernet

Network switches allow the interconnection of devices and controllers across a facility, with particular features that make them a good fit for industrial applications. We introduce a few of the leading manufacturers of these products.