Archives :: Software, Automation & Control :: Instrumentation, Automation & Control :: Advanced Process Control

Displaying 1 - 15 of 15 stories.
February 1, 2014
Beginning with the early days of automated multivariable control in the 1980s, the trend has always been toward the use of larger matrices and more models. Today’s multivariable controllers commonly comprise dozens of variables and hundreds of models. But the next big advancement in multivariable control may be a shift toward the use of small-matrix, model-less multivariable control practice...
October 1, 2013
Field Device Tools gain acceptance The SAC (Standardization Administration of the People’s Republic of China) has announced the official approval of the FDT [Field Device Tool] standard as the China National Standard GB/T 29618, clearing the way for further, broad deployment of the FDT standard throughout China in all industrial and governmental control projects. The FDT standard is already approved...
July 1, 2013
Security of SCADA (supervisory control and data acquisition) and other industrial control systems (ICSs) is a complex subject, and one that has received much attention in recent years. While modern industrial control systems use many of the same computers, operating systems and networking components as conventional business networks, the two kinds of networks are managed very differently. As a result, what...
February 1, 2012
The pursuit of manufacturing excellence is a strong theme across all of the chemical process industries (CPI). Improving operations by eliminating variability and waste, a cornerstone of the six sigma approach, is essential for competitive performance in the global marketplace. In addition, of course, health, safety and the environment (HSE) remains the subject of intense scrutiny and concern. Within this...
June 1, 2011
There was a time, not long ago, when most groups responsible for industrial control systems (ICS) in the chemical process industries (CPI) were not much worried about security. They had their firewalls in place and their remote access servers, and overall that worked for them. Rarely, a virus would sneak in and usually do little damage. The affected computers would need to be shut down and cleaned out, but...
November 1, 2010
One of the best ways to realize value from your process data is to use those data — both real-time and historical — in a process simulator. The many applications for doing so are generally categorized into offline and online categories. Offline applications, where the simulator is not directly connected to the control system, use process data to validate dynamic simulations of the process, or...
October 1, 2010
Improvements to the performance of basic, regulatory control systems have a great return on investment and are some of the least expensive control improvements to make [1]. Control valves have a major impact on control loop performance and, therefore, improvements in valve performance can have significant economic benefits. This article shows how poor control-valve performance can be identified and...
September 1, 2009
More and more, the chemical process industries (CPI) are seeking out the benefits of flexible production and maximizing energy and material recovery. Process units are becoming tightly integrated, and the failure of one unit can seriously degrade overall productivity. Meanwhile, with the influx of larger and larger scale operations, even small changes in productivity can seriously affect profitability...
October 15, 2008
Cutler Technology Corp. (San Antonio, Tex.; has launched ADMC 64, its most-advanced model-predictive controller ( CE, November 2005, p. 15). With 64-bit resolution, the...
September 15, 2008
Process engineers understand how to harness the power of closed-loop multi-variable control in their plants. The evolution of digital control in the chemical process industries (CPI) has provided that power. Yet digital control represents just one facet of optimization and improvement within operations. With increased digitization, the universes of process control and information technology (IT) are...
September 15, 2008
Today, companies in the chemical process industries (CPI) are faced with increased operating expenses, reductions in the number of qualified workers, strong competition and the need to do more with less. To meet these challenges, many companies are making use of advancements in instrumentation and control technologies to optimize plant performance. These advancements often lie in improved electronic...
November 15, 2007
Although some CPI management may not realize it, PLCs (programmable logic controllers) are the brains behind many operations in the chemical process industries (CPI). A malfunctioning PLC can cause lines, plants and even operations such as city bridges and water stations to shut down. Thousands to millions of dollars could be lost in association with one PLC that maintenance personnel may not even know...
September 1, 2007
    Multivariable (MV) control is a powerful technology. Applied in industry for several decades now, substantial benefits from its use have been reported in many publications. Yet, this technique is still by far not utilized to the extent it could and should be, one reason being that there is still a lot of uncertainty about it. Many control professionals are not proficient enough on what MV...
May 1, 2006
Last month, Invensys Process Systems (Foxboro, Mass.; launched InFusion (, claimed to be the world’s first enterprise-control system (ECS). InFusion (diagram) is designed to help industrial enterprises more effectively align plant operations and maintenance departments with the business to optimize overall asset-performance management. Historically...

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