Basic process control, what we now call “level 2” in the Purdue Enterprise Reference Architecture, has been the basis for successful process manufacturing for decades. Industry has witnessed several ...

The information presented in this publication is for the general education of the reader. Because neither the author nor the publisher have any control over the use of the information by the reader, ...

In order to design, analyze, or commission a process control system, one must be familiar with the characteristics of the process itself. Although it is highly beneficial for the control engineer to ...

PLC evaluation board applications for industrial process-controlsystems are diverse, ranging from simple traffic control to complexelectrical power grids, from environmental control systems ...

A typical Distributed Control System (DCS) consists of functionally and/or spatially distributed digital controllers capable of executing from one to 256 or more regulatory control loops in one ...

What is a control system? A control system is a set of mechanical or electronic devices that regulates other devices or systems by way of control loops. Typically, control systems are computerized.

Braskem—made the leading petrochemical company in the Americas and one of the largest in the world by the merger of six companies in 2002—has 40 industrial units around the world. Along the way, ...

In 2009, the original version of ANSI/ISA-18.2, Management of Alarm Systems for the Process Industries, was published. It was further developed with ISA18 leadership into the IEC 62682:2014 ...

Though the presumption is that physical separation is needed between control and safety systems to avoid common cause failures, “effective” separation may be enough with proper analysis and the right ...

This article overviews some of the benefits and methods of state-based control as it applies to the models defined by the ISA106, Procedure Automation for Continuous Process Operations standards ...

Suggested Citation: "8 Methods for Evaluation." National Research Council. 2007. Human-System Integration in the System Development Process: A New Look. Washington, DC: The National Academies Press.