Latest Utilities Technical Articles

Control.com chats with Weidmüller to get some insights about data center automation, learning about security,…

Control.com chats with Weidmüller to get some insights about data center automation, learning about security, environmental impacts, regulations, and more.

Motor speed control can be a tricky process, due to the variety of options. In a VFD, speed can be controlled using fixed…

Motor speed control can be a tricky process, due to the variety of options. In a VFD, speed can be controlled using fixed values, digital or analog signals, or communication networks.

It’s easy to obtain I/O values for local and remote modules and network nodes. But what about system data that’s…

It’s easy to obtain I/O values for local and remote modules and network nodes. But what about system data that’s built into the PLC? How can we access and use that information?

Learn about electrical signalling systems for process control. What advantages may be provided by choosing analog systems…

Learn about electrical signalling systems for process control. What advantages may be provided by choosing analog systems vs. advanced modern fieldbus protocols?

MQTT and OPC UA are very different, but they accomplish essentially the same thing: push data from one device to another.…

MQTT and OPC UA are very different, but they accomplish essentially the same thing: push data from one device to another. Which method to use relies on understanding how each process is accomplished.

This article provides an overview of the OSI models, IT/OT industrial protocols, and key applications behind the…

This article provides an overview of the OSI models, IT/OT industrial protocols, and key applications behind the networking capabilities that drive modern industrial and process automation systems.

Stacking items on a pallet seems a minor part of the manufacturing process, but it actually requires speed, precision,…

Stacking items on a pallet seems a minor part of the manufacturing process, but it actually requires speed, precision, and flexibility to relieve a heavy burden placed on employees.

Learn about OT resilience strategies, including SSH, authentication, port blocking, and MAC address binding, methods that…

Learn about OT resilience strategies, including SSH, authentication, port blocking, and MAC address binding, methods that can be employed to protect network switches.

Networked remote I/O allows machine centers to operate while physically separated from the rest of the system, and often,…

Networked remote I/O allows machine centers to operate while physically separated from the rest of the system, and often, the solution can drop right into place.

When dealing with two or more I/O systems, the subject of power supply commons will arise. Sometimes the solution is…

When dealing with two or more I/O systems, the subject of power supply commons will arise. Sometimes the solution is simple, but it can require creativity to find the best (and safest) solution.

Learn about more advanced Boolean logic functions, including truth tables, Schmitt triggers, and multiplexers that can be…

Learn about more advanced Boolean logic functions, including truth tables, Schmitt triggers, and multiplexers that can be implemented in a PLC function block programming environment.

H-bridge circuits are commonly used to provide current switching capabilities to different electrical components in…

H-bridge circuits are commonly used to provide current switching capabilities to different electrical components in automated systems like motor control circuits, VFDs, and DC/AC current conversions.

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.

Previously reserved for personal and commercial deployments, learn how cellular IoT connectivity technologies are…

Previously reserved for personal and commercial deployments, learn how cellular IoT connectivity technologies are influencing industrial trends, organizations, and integrators.

An interposing relay is an interface between a control system and a higher power circuit to provide isolation or…

An interposing relay is an interface between a control system and a higher power circuit to provide isolation or amplification of mismatched voltage and current from a control to a load circuit.

Dynamic braking resistors stop motors more quickly by converting the rotational energy, but how do we select the correct…

Dynamic braking resistors stop motors more quickly by converting the rotational energy, but how do we select the correct one and configure a PowerFlex drive to utilize the resistor effectively?

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?

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.