Latest PLCs & PACs Technical Articles

Using a MOVE function block, a counter preset value can be loaded into an OpenPLC counter using a digital input. The…

Using a MOVE function block, a counter preset value can be loaded into an OpenPLC counter using a digital input. The technique allows flexibility in creating counter-based automation applications.

IO-Link has established itself as a reliable field network that’s constantly evolving with new generations of devices.…

IO-Link has established itself as a reliable field network that’s constantly evolving with new generations of devices. Learn how to configure logic directly on the IO-Link master.

In this article, we’ll connect a Festo CMMT to a Rockwell CompactLogix PLC, and as a bonus, we’ll add an HMI to…

In this article, we’ll connect a Festo CMMT to a Rockwell CompactLogix PLC, and as a bonus, we’ll add an HMI to provide some basic on/off and positional targeting controls.

Learn how to segment your sequential control logic for easy troubleshooting using Step (STL) and Return (RET) commands in…

Learn how to segment your sequential control logic for easy troubleshooting using Step (STL) and Return (RET) commands in Mitsubishi PLCs.

Learn how to configure a single motion axis using Festo’s Automation Suite, a servo motor drive, and a simple electric…

Learn how to configure a single motion axis using Festo’s Automation Suite, a servo motor drive, and a simple electric linear slide assembly.

Learn in this detailed analysis about the performance of industrial PLC and a prototyping microcontroller to perform…

Learn in this detailed analysis about the performance of industrial PLC and a prototyping microcontroller to perform stepper motor motion control for an arc welding automation project.

We know that PID stands for proportional, integral, and derivative, but have you ever seen exactly how the derivative…

We know that PID stands for proportional, integral, and derivative, but have you ever seen exactly how the derivative term affects the final output signal in a motion control system?

Some new factories are networked from stem to stern, ready to roll. But sometimes, it’s just you and a new PLC, so it…

Some new factories are networked from stem to stern, ready to roll. But sometimes, it’s just you and a new PLC, so it won’t really matter how you set things up, it’ll probably work just fine, right?

Unexpected, false, and fluctuating PLC input signals can cost many hours of debugging, but luckily, there are some quick,…

Unexpected, false, and fluctuating PLC input signals can cost many hours of debugging, but luckily, there are some quick, simple tricks to try before downtime is wasted.

Watch how each of the P and I terms influence the output of a motion control system. How do we explain and prevent terms…

Watch how each of the P and I terms influence the output of a motion control system. How do we explain and prevent terms like overshoot, error, and long settling time?

When the blinking lights on automation devices stop blinking, the control cabinet is often the go-to troubleshooting…

When the blinking lights on automation devices stop blinking, the control cabinet is often the go-to troubleshooting culprit, but how do you make the best judgments for quickly locating the problem?

A common field-level protocol for automation is ASi or AS-interface–a method used to convey actuator and sensor data…

A common field-level protocol for automation is ASi or AS-interface–a method used to convey actuator and sensor data and commands between I/O devices and the PLC control system level.

After we explored the initial configuration, it’s now time to see exactly how to implement IO-Link in a simple PLC…

After we explored the initial configuration, it’s now time to see exactly how to implement IO-Link in a simple PLC project, explaining how to interpret process data bytes for input and output.

Using an Arduino Opta PLC, a few off-the-shelf electrical components, and the popular OpenPLC software environment,…

Using an Arduino Opta PLC, a few off-the-shelf electrical components, and the popular OpenPLC software environment, automation control concepts can be built on your own test bench.

Learn about produced and consumed tags in PLCs, their functions, setup, and important considerations for effective data…

Learn about produced and consumed tags in PLCs, their functions, setup, and important considerations for effective data sharing between controllers in a control system.

It can be risky to adopt unknown technology; it poses serious security concerns if misused. The Control.com engineering…

It can be risky to adopt unknown technology; it poses serious security concerns if misused. The Control.com engineering team contacted our friends at OnLogic to gain some insight into VPN technology.

CODESYS is an automation software that is independent from any one vendor, capable of many PLC, I/O, and motion…

CODESYS is an automation software that is independent from any one vendor, capable of many PLC, I/O, and motion operations. However, being vendor-agnostic can present challenges. Learn how to get started.

‘Twas the Night Before Christmas: like you’ve (probably) never heard it before.

‘Twas the Night Before Christmas: like you’ve (probably) never heard it before.

As an engineer, why would you settle for simply plugging and unplugging your Christmas lights when you could, instead,…

As an engineer, why would you settle for simply plugging and unplugging your Christmas lights when you could, instead, spend many hours automating this very important December job? Let me show you.