Control Room

A Simple Nonlinear PD Controller for Integrating Processes

Abstract: Many industrial processes are found to be integrating in nature, for which widely used Ziegler–Nichols tuned PID controllers usually fail to provide satisfactory performance due to excessive overshoot with large settling time. Although, IMC (Internal Model Control) based PID controllers are capable to reduce the overshoot, but little improvement is found in the load disturbance […]

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ISA Vision 2020: Can you see the duck?

For as long as I can remember, almost every time I have traveled by car to a place, even if I have been there in the past, I check to make sure I have directions. Today that typically means that I enter the destination in my car’s WAAS/GPS (wide area augmentation system/global positioning system). The […]

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August Training and Education Courses Offered by ISA

ISA automation training and education programs for August feature course offerings in calibration, cybersecurity, industrial networking, tuning control loops and instrumentation in hazardous environments plus webinars and online education. The featured program for the month is the Automation Engineering Survival Training course, which is designed specifically for system integrators and focuses on concepts important to […]

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Prime Technologies_Jonah

How Can You Achieve a Total Paperless Calibration System?

Not long ago, instrument calibration activities were accomplished using paper worksheets. When calibration management software was used it was primarily as an asset information repository and event scheduler. Worksheets were typically created and approved by management or quality personnel who presumably understood current industry standards. They would initially design a form which included pre-determined math […]

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Chemical factory

PID Controller Auto-Tuning Based On Process Step Response and Damping Optimum Criterion

Abstract: This paper presents a novel method of PID controller tuning suitable for higher-order aperiodic processes and aimed at step response-based auto-tuning applications. The PID controller tuning is based on the identification of so-called n-th order lag (PTn) process model and application of damping optimum criterion, thus facilitating straightforward algebraic rules for the adjustment of both […]

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New HMI Alternatives Improve Operations and Cut Costs

Faster speeds, lower costs, and greater connectivity are essential to the success of all businesses, including manufacturing. With the introduction of lean manufacturing, Six Sigma, and other continuous improvement strategies, operations must become more flexible, easier to manage, and less expensive. To achieve these goals, businesses demand user-friendly human-machine interface (HMI) graphics, the ability to […]

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Using Smart Field Devices to Improve Safety System Performance

Any process plant that handles products, feedstock, or fuels that are the least bit hazardous (flammable, toxic, or otherwise environmentally dangerous) has safety concerns. Operating in compliance with regulations and standards is a way of life for oil, gas, petrochemical, biofuel, and many commodity chemical producers. But beyond compliance, companies want and need to protect […]

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The Right (and Wrong) Way to Market Your Brand on Linkedin Groups

Some might consider it social media heresy to use LinkedIn groups to promote a business or sell products. After all, LinkedIn established groups as a place for members to post business questions and industry viewpoints, discuss news and group-related topics, seek career guidance, make valued professional connections and learn about new job opportunities. So can […]

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Your New Robot Colleague is Coming Out of its Cage

When asked how they envision a robot, most people either think of huge, unwieldy robots working in fenced-off areas in large factories, or they think of futuristic cyberbots mimicking human behavior. But somewhere between these two scenarios lies an emerging reality: a new class of robots, dubbed collaborative robots due to their ability to work […]

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