Latest PLCs & PACs Articles

Watch our 'Introduction to PLCs' series by our very own Control Automation engineering staff. Join us for the YouTube…

Watch our 'Introduction to PLCs' series by our very own Control Automation engineering staff. Join us for the YouTube premier LIVE event on Wednesday, July 6th with a Q&A from the video author and engineer.

The newly-announced CIP Safety I/O Module from Balluff supports CIP Safety specifications over an Ethernet network,…

The newly-announced CIP Safety I/O Module from Balluff supports CIP Safety specifications over an Ethernet network, providing a platform for safety device distribution directly on the machine center.

One common challenge when working with legacy control systems is establishing communication with old devices that use old…

One common challenge when working with legacy control systems is establishing communication with old devices that use old protocols like RS232 and RS485. Learn about the importance of converting from serial to Ethernet.

There are many distributed fieldbus capabilities for valve manifolds that can save on network overhead and wiring. In…

There are many distributed fieldbus capabilities for valve manifolds that can save on network overhead and wiring. In this article, we will look at PLC programming of fieldbus manifolds highlighting Festo's CPX layout.

We will show you how to use the basic trigonometry functions to build ladder logic in a PLC, allowing for a clean,…

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.

Communication protocols are a key component for an industry 4.0 compliant facility and are used to enable communication…

Communication protocols are a key component for an industry 4.0 compliant facility and are used to enable communication back and forth between cloud servers to transmit data or receive instructions.

We will show you how to use common math functions from two popular PLC programs—Rockwell Automation's Studio 5000 and…

We will show you how to use common math functions from two popular PLC programs—Rockwell Automation's Studio 5000 and Automation Direct Productivity Suite. 

Programmable Logic Control (PLC) systems are the core of most industrial control systems that drive modern manufacturing.…

Programmable Logic Control (PLC) systems are the core of most industrial control systems that drive modern manufacturing. In our Control.com video tutorials, we will share information, experience, and tips for working with PLCs—from the hardware, to the wiring, to the programming logic of inputs, outputs, and communication processes.

Software obsolescence poses a threat in industrial automation equal to hardware obsolescence and should not be…

Software obsolescence poses a threat in industrial automation equal to hardware obsolescence and should not be overlooked. Many PLC OEMs offer tools to migrate upgraded software projects to the newest controller revisions.

The HART protocol enables instruments to send analog and digital signals over the same physical wire. This provides…

The HART protocol enables instruments to send analog and digital signals over the same physical wire. This provides multiple advantages for remote configuration, increased accuracy, and more.

Configuring analog signals into usable digital quantities is accomplished by scaling function inside the PLC, which,…

Configuring analog signals into usable digital quantities is accomplished by scaling function inside the PLC, which, along with analog signal wiring, is important to understand.

Explore trends in PLC technology that give us a glimpse into what the future may hold for hardware, software, and system…

Explore trends in PLC technology that give us a glimpse into what the future may hold for hardware, software, and system architecture.

Welcome to Control Automation Day 2022—Control.com’s digital-only event for engineers! Here is your guide to…

Welcome to Control Automation Day 2022—Control.com’s digital-only event for engineers! Here is your guide to navigating the keynote addresses, live educational sessions, and exciting giveaways from your favorite manufacturers!

Counting up and down are commonly required functions in PLC lagger logic programs for tracking inventories, placement…

Counting up and down are commonly required functions in PLC lagger logic programs for tracking inventories, placement patterns, and gaining informational insights about machine performance statistics.

Designing an obsolescence mitigation plan to detect and solve mitigation risks before they occur is key to avoiding…

Designing an obsolescence mitigation plan to detect and solve mitigation risks before they occur is key to avoiding costly downtime and a potential catastrophe in control environments. 

Many PLC commands are well-known to programmers, including contacts, coils, timers, and counters. But a less-common…

Many PLC commands are well-known to programmers, including contacts, coils, timers, and counters. But a less-common instruction is the one-shot, capable of harnessing the incredible processing speeds in a CPU.

One of the most considerable risks in aging control environments is that eventually, spare parts become obsolete and…

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.

Credited with coining the name ‘PLC’, Allen-Bradley and parent company Rockwell Automation are major players in the…

Credited with coining the name ‘PLC’, Allen-Bradley and parent company Rockwell Automation are major players in the world of control systems. Learn how the hardware platforms have evolved into the familiar modern configurations.

Many companies offer automation solutions that work from the beginning to the end of a process. Not the progress of the…

Many companies offer automation solutions that work from the beginning to the end of a process. Not the progress of the product through the facility, but rather hardware from the shop floor to the cloud level and everything in between. We highlight here some solutions from Emerson and Bosch Rexroth from Automate 2022.