Latest HVAC Articles

Voltage is a simple topic at the surface, yet also extremely complex, with thousands of scenarios involving the unseen…

Voltage is a simple topic at the surface, yet also extremely complex, with thousands of scenarios involving the unseen forces of electron flow all around us. These 7 facts might surprise you!

The SLC 500 PLC family dominated automation control for well over thirty years and now, with the recent discontinuation…

The SLC 500 PLC family dominated automation control for well over thirty years and now, with the recent discontinuation of most of the series, we look at the differences between SLC and modern Logix PLCs.

The new RSGT soft starter lineup from Carlo Gavazzi is designed to improve the start-up performance of IE3 premium…

The new RSGT soft starter lineup from Carlo Gavazzi is designed to improve the start-up performance of IE3 premium efficiency 3-phase motors up to 75 horsepower.

Some terminology, like 'normally open' and 'normally closed' switch contacts, is common throughout industry but can still…

Some terminology, like 'normally open' and 'normally closed' switch contacts, is common throughout industry but can still be confusing, misleading, or even hazardous if not properly understood.

ABB has expanded and upgraded the safety capability of flagship VFDs with an Ethernet/IP CIP plug-in module capable of…

ABB has expanded and upgraded the safety capability of flagship VFDs with an Ethernet/IP CIP plug-in module capable of sending safe torque off (STO) and safe stop signals without additional wiring.

Electrical grounding is used to accomplish several different tasks, but none more important than for the safety of users…

Electrical grounding is used to accomplish several different tasks, but none more important than for the safety of users and equipment while maintaining strict adherence to regulations.

Learn all about the power supply: modular and built-in devices that deliver electricity to the PLC backplane and modules,…

Learn all about the power supply: modular and built-in devices that deliver electricity to the PLC backplane and modules, and learn the difference between control and field device power delivery.

Many online sources explain how to reverse a 3-phase motor; this article will discuss the electrical principles that…

Many online sources explain how to reverse a 3-phase motor; this article will discuss the electrical principles that define why it works and how the phase relationships determine the rotation direction.

AutomationDirect has introduced a new series of reasonably priced pressure sensors, the AchieVe LPPT. The sensors’…

AutomationDirect has introduced a new series of reasonably priced pressure sensors, the AchieVe LPPT. The sensors’ rugged design makes them suitable for industrial applications.

Two primary technologies are used for creating touchscreens. For industrial HMIs, resistive and capacitive methods both…

Two primary technologies are used for creating touchscreens. For industrial HMIs, resistive and capacitive methods both contain certain advantages for various applications.

Copia releases a new Git-based DevOps platform to increase manufacturing efficiency by reducing code-based downtime,…

Copia releases a new Git-based DevOps platform to increase manufacturing efficiency by reducing code-based downtime, saving millions in revenue.

Digilent's stand-alone data loggers enable integrators and machine builders to remotely monitor, control, and log…

Digilent's stand-alone data loggers enable integrators and machine builders to remotely monitor, control, and log important data from their control systems without additional software or a PC.

Protection against faults is crucial for any electrical system. This article examines various protective devices,…

Protection against faults is crucial for any electrical system. This article examines various protective devices, highlighting their roles and best use cases to ensure system integrity and longevity.

Adding wireless to PLC projects poses challenges, namely security and project complexity. ControlByWeb seeks to overcome…

Adding wireless to PLC projects poses challenges, namely security and project complexity. ControlByWeb seeks to overcome those barriers and add cellular data to the newest controller versions.

Logic is critical for industrial control, and it usually looks like ladders, function blocks, or structured text. I/O…

Logic is critical for industrial control, and it usually looks like ladders, function blocks, or structured text. I/O controllers are designed to automate simple logic tasks and data functions.

An age-old debate in PLC programming: investigating the uses and caveats of latching software commands versus seal-in…

An age-old debate in PLC programming: investigating the uses and caveats of latching software commands versus seal-in ladder logic for industrial control applications.

The new eXT and nXT series of Xpanel HMI displays from CIMON have been given an upgrade with the release of Canvas 4.0,…

The new eXT and nXT series of Xpanel HMI displays from CIMON have been given an upgrade with the release of Canvas 4.0, providing access to new features for HMI project development.

Nidec’s Control Techniques has launched the SI-BACnet IP add-on module for new and existing HVAC drives to help…

Nidec’s Control Techniques has launched the SI-BACnet IP add-on module for new and existing HVAC drives to help communicate between devices and create a connected automated building.

Learn how to connect analog inputs, either voltage or current, to the Phoenix Contact’s IIoT PLC platform and design…

Learn how to connect analog inputs, either voltage or current, to the Phoenix Contact’s IIoT PLC platform and design simple data processing programs with the PLCnext Engineer IDE.