Latest PLCs & PACs Technical Articles

Creating custom alarm systems can be complicated and overwhelming, but they can also be very beneficial for equipment…

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.

Version control software allows manufacturers to automatically save code revisions across teams. Learn how Automation NTH…

Version control software allows manufacturers to automatically save code revisions across teams. Learn how Automation NTH leveraged this strategy to save countless hours and increase reliability.

Using a Raspberry Pi and the OpenPLC software platform, create a simple PLC that can be programmed in ladder diagrams…

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.

Many sensors, like prox, optical, and ultrasonic, are familiar to control engineers. More and more modern devices are…

Many sensors, like prox, optical, and ultrasonic, are familiar to control engineers. More and more modern devices are incorporating advanced motion profiles requiring motion sensing in many axes.

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

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

This article investigates the basic qualities that make up a safety PLC, what distinguishes a safety PLC from a standard…

This article investigates the basic qualities that make up a safety PLC, what distinguishes a safety PLC from a standard model, and the reasons for which a safety PLC may be critical.

Have you ever heard of a relay? Of course you have. There are many different kinds, plus hundreds of different trade…

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?

Storing data long-term for recording and reporting purposes is the job of the utility data warehouse, quite different…

Storing data long-term for recording and reporting purposes is the job of the utility data warehouse, quite different from data-collection processes that optimize systems and predict failures.

In order to trace control system problems to the core, the ability to read and interpret various resources, from…

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.

Converting different numbering systems is quite common in PLCs and structured text codes. Why? Because people read…

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.

A complete diagram for wiring nearly any kind of discrete I/O module, including digital, AC, or relay, including both…

A complete diagram for wiring nearly any kind of discrete I/O module, including digital, AC, or relay, including both sourcing and sinking varieties.

We conclude the data flow project with the step of developing a business intelligence dashboard to present machine data,…

We conclude the data flow project with the step of developing a business intelligence dashboard to present machine data, at a reliable schedule, to a leadership or maintenance team.

It’s important to consider your PLC tag naming convention when using different styles. Learn when and why you might…

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.

We begin to wrap up our data flow project with an introduction to visual-based (GUI) tools and dashboards to present the…

We begin to wrap up our data flow project with an introduction to visual-based (GUI) tools and dashboards to present the data ingested from the Google Sheets fault data source.

Rockwell Automation’s Allen-Bradley control hardware catalog has long included many series that start with 17xx, but…

Rockwell Automation’s Allen-Bradley control hardware catalog has long included many series that start with 17xx, but what are these lineups, and what function do they serve?

A flasher can easily be implemented using interlocking timers in a PLC environment on an Arduino Uno using OpenPLC,…

A flasher can easily be implemented using interlocking timers in a PLC environment on an Arduino Uno using OpenPLC, UiFlow Blockly Code, and a programmable HMI-based LCD unit.

In this article, we will explore the inbound integration to the mage.ai pipeline, connecting to the spreadsheet data…

In this article, we will explore the inbound integration to the mage.ai pipeline, connecting to the spreadsheet data source using the Google Sheets API through a JSON credentials file.

When inputs or outputs stop working, the equipment fails to respond and money starts slipping away. Dive into the concept…

When inputs or outputs stop working, the equipment fails to respond and money starts slipping away. Dive into the concept of troubleshooting I/O without ever opening the PLC software.

Machine downtime can be very stressful for everybody involved. Next time you face a challenging system failure, try some…

Machine downtime can be very stressful for everybody involved. Next time you face a challenging system failure, try some of these LED troubleshooting techniques to reduce stress.