Latest Building Technical Articles

Additional rules for the grounding and bonding of industrial control panels include the sizing of ground conductors and…

Additional rules for the grounding and bonding of industrial control panels include the sizing of ground conductors and the conditions that dictate when power supplies and transformers must be grounded.

A PLC can be placed in Run or Stop, or occasionally Program mode, usually through physical or virtual methods. But what…

A PLC can be placed in Run or Stop, or occasionally Program mode, usually through physical or virtual methods. But what do these modes mean, and when should they be used?

Some controllers and network devices have one port, while others have two. Why is there a difference, and what advantages…

Some controllers and network devices have one port, while others have two. Why is there a difference, and what advantages does having two network ports actually provide?

Function block diagram (FBD) programming is a common language for PLCs following the IEC 61131 standard. What is FBD, and…

Function block diagram (FBD) programming is a common language for PLCs following the IEC 61131 standard. What is FBD, and how does it differ from the familiar ladder logic programs?

Whether working with measurement tools or process controllers, it is important to recognize faulty display values and the…

Whether working with measurement tools or process controllers, it is important to recognize faulty display values and the best ways to fix them.

Designing a control system is a difficult task in itself, but designing the graphical interface for an everyday user can…

Designing a control system is a difficult task in itself, but designing the graphical interface for an everyday user can be a very different kind of challenge that involves mental and physical considerations.

Understanding the building blocks of s-domain analysis and magnitude response theory can go a long way in helping…

Understanding the building blocks of s-domain analysis and magnitude response theory can go a long way in helping engineers predict how and why some system design choices are made over others.

User-defined data types (UDTs) are a powerful and useful tool when applied to their full advantage. However, misused,…

User-defined data types (UDTs) are a powerful and useful tool when applied to their full advantage. However, misused, they can become problematic and introduce roadblocks to troubleshooting and upgrading PLC programs.

Programmable encoders provide engineers real flexibility to adjust process parameters. From operating theory to…

Programmable encoders provide engineers real flexibility to adjust process parameters. From operating theory to programming methods, here’s everything you need to know to begin leveraging these handy devices.

Driving motors is one of the most fundamental automation tasks, but understanding and selecting the proper motor soft…

Driving motors is one of the most fundamental automation tasks, but understanding and selecting the proper motor soft starter for your application may require more investigation than you thought.

What are these terms, PLC, PAC, RTU, DCS, SCADA? Why are they so important to industrial robotics and automation? Explore…

What are these terms, PLC, PAC, RTU, DCS, SCADA? Why are they so important to industrial robotics and automation? Explore how each different piece functions to build a comprehensive automated system.

Many articles address the wiring and implementation of analog control signals, but where are they used, and what might…

Many articles address the wiring and implementation of analog control signals, but where are they used, and what might make them a better (or perhaps worse) decision than digital input/output devices?

Using the right motor for the right task is critical - but what happens if the motor is connected to the wrong supply? It…

Using the right motor for the right task is critical - but what happens if the motor is connected to the wrong supply? It is never recommended, but important to quickly understand symptoms of incorrect wiring.

Digital signals hold a prominent position due to their compatibility with computers. But what are digital signals, and…

Digital signals hold a prominent position due to their compatibility with computers. But what are digital signals, and what are some examples of the various devices used with digital inputs and outputs?

Single-phase motors are common in household and small industrial devices. They are a bit more complex than 3-phase…

Single-phase motors are common in household and small industrial devices. They are a bit more complex than 3-phase models, so it’s important to recognize failure modes and common symptoms.

Virtual networks can connect or isolate various local control networks through configuration of a managed switch. Why…

Virtual networks can connect or isolate various local control networks through configuration of a managed switch. Why would we use VLANs, and how can you segment a network switch to create a VLAN?

Structured Text (ST) is one of the common IEC programming languages that can be used in programming PLCs. Learn how to…

Structured Text (ST) is one of the common IEC programming languages that can be used in programming PLCs. Learn how to use structured text to write executable programs for MELSEC’s FX series PLC.

Mathematical operations are essential in PLC programming as they help in creating an argument output that is based on…

Mathematical operations are essential in PLC programming as they help in creating an argument output that is based on proportionality and numbers. Learn how to implement mathematical operations in FX and Q Series PLCs.

I could run down to the local box store or internet marketplace and buy a 5-port switch for less than 20 dollars, or…

I could run down to the local box store or internet marketplace and buy a 5-port switch for less than 20 dollars, or invest in an industrial switch for hundreds. Why would I choose the industrial switch?