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 colliding. In most plants, the different systems and applications that have been deployed around process control systems largely remain isolated in their silos and from business processes.
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 components that provide higher accuracy of measurements and faster control algorithms, which in turn allow for increased throughput and greater yields of "on-spec" product.... http://www.che.com/software_automation_and_control/instrumentation_automation_and_control/advanced_process_control/From-Tap-to-Transmitter_4173.html
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 control really means and when to use it. In fact, most consider it a rather complex, expensive and time-consuming endeavor, inherently too heavy to be dealt with — a perception that calls for correction.... http://www.che.com/software_automation_and_control/instrumentation_automation_and_control/advanced_process_control/Multivariable-Control_3369.html
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