Latest Oil & Gas Technical Articles

Using an ADC can be very useful when dealing with analog devices in microprocessors, and a necessity when adding analog…

Using an ADC can be very useful when dealing with analog devices in microprocessors, and a necessity when adding analog devices to an industrial controller. But once you connect the hardware - what next?

Large DC and AC motor drives often provide terminals for installing a braking resistor. What are these resistors, and how…

Large DC and AC motor drives often provide terminals for installing a braking resistor. What are these resistors, and how do they slow down a machine? What hazards and cautions must be considered?

Redundancy and safety are often seen together in industrial safety systems. Safety relays monitor emergency devices to…

Redundancy and safety are often seen together in industrial safety systems. Safety relays monitor emergency devices to switch contacts based on status - but what makes them different from normal relays?

This article covers the prominent IEC 60870 standard for SCADA in electrical power systems, as well as background…

This article covers the prominent IEC 60870 standard for SCADA in electrical power systems, as well as background information on the International Electrotechnical Commission (IEC), the publishing organization.

With the increasing appearance of “web-based” HMIs, we investigate these devices, learn how they differ from the…

With the increasing appearance of “web-based” HMIs, we investigate these devices, learn how they differ from the graphical HMIs, and see implications for our modern control system architecture.

AC motors are common throughout industry - easily controlled by VFDs and without the maintenance that comes with DC…

AC motors are common throughout industry - easily controlled by VFDs and without the maintenance that comes with DC brushes. So then, why are DC motors still used in certain applications?

Before digital control systems, responses were fairly slow. Push a button, and a motor contactor engaged. These days, the…

Before digital control systems, responses were fairly slow. Push a button, and a motor contactor engaged. These days, the speed of computers introduces some new challenges but brings solutions as well.

Modbus is a communication protocol stemming from the early days of Modicon PLCs, but is still common today. These two…

Modbus is a communication protocol stemming from the early days of Modicon PLCs, but is still common today. These two example implementations of Modbus transactions will get you started.

The objective of predictive maintenance is to foresee potential machine failure with the help of machine learning…

The objective of predictive maintenance is to foresee potential machine failure with the help of machine learning algorithms provided with vast quantities of data.

Labels are such a small detail in the world of robotics and automation, they are often given very little attention.…

Labels are such a small detail in the world of robotics and automation, they are often given very little attention. However, they play a vital role in proper system function - from installation to troubleshooting.

Inductive loads, such as solenoids and contactors, can cause arcs and failures back into electromechanical switching…

Inductive loads, such as solenoids and contactors, can cause arcs and failures back into electromechanical switching devices, causing costly downtime. The solution is cheaper than you think.

Moisture inside industrial pneumatic systems is a major cause for concern, and if the air is not filtered or dried…

Moisture inside industrial pneumatic systems is a major cause for concern, and if the air is not filtered or dried properly, it can lead to serious failures.

Failures of I/O systems are a common source of headache for control engineers. Troubleshooting those devices that have…

Failures of I/O systems are a common source of headache for control engineers. Troubleshooting those devices that have polarized connections (source vs sink, and NPN vs PNP) is a technique worth refining.

Analog and digital multimeters have both enjoyed popularity in different generations of electrical systems. What is…

Analog and digital multimeters have both enjoyed popularity in different generations of electrical systems. What is unique about the analog meters, and in what situations might they be preferred over their digital counterparts?

Measuring pH is a critical task of many chemical processes and systems. Learn the definition of pH, the measurement…

Measuring pH is a critical task of many chemical processes and systems. Learn the definition of pH, the measurement tools, and the calibration steps for proper operation and care of these meters.

Statistical process control (SPC) allows for continual improvement process (CIP), a method of optimizing a process driven…

Statistical process control (SPC) allows for continual improvement process (CIP), a method of optimizing a process driven by data and statistical methods.

Industrial automation is only possible when the various system components can communicate with each other using physical…

Industrial automation is only possible when the various system components can communicate with each other using physical cable connections. In this article, learn about some of the most popular communication cables and connectors used in the industry.

Learn how control charts are used in statistical process control (SPC) to show how a process changes with time as…

Learn how control charts are used in statistical process control (SPC) to show how a process changes with time as compared to past measurements, providing reliable visualizations for data-driven decisions.

What is a PLC? This article will lay out a succinct definition of a programmable logic controller and explain its basic…

What is a PLC? This article will lay out a succinct definition of a programmable logic controller and explain its basic components.