MAY-JUN 2019

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46 INTECH MAY/JUNE 2019 WWW.ISA.ORG I SA99, Industrial Automation and Con- trol Systems (IACS) Security, has begun work on an ISA technical report to be titled, Applying ISA-62443 to the Indus- trial Internet of Things (IIoT). Coverage will include general categories of IIoT devices within IACS, cybersecurity challenges, and rates of adoption in industry. The report will then serve as a guide in determining if any new and related ISA99 work products are required. The technical report will be the first work product of Working Group 9, IIoT and Security, which was established by ISA99 to analyze the specific characteris- tics of the IIoT in terms of threats, attack surface, and vulnerabilities, and to exam- ine whether the approach developed by ISA99 for securing a conventional IACS is appropriate and sufficient for IIoT. This assessment is vital, as the IIoT is a specific case of IACS with a very wide range of ob- jects, an extended surface area, and a high scalability, resulting in a very large attack surface and new vulnerabilities. The work- ing group will first examine the specific risks and new forms of attack to which the IIoT may be subject. This project is one of numerous cur- rent development activities within ISA99 to support and advance the widely used ISA/IEC 62443 series of standards on IACS security. The standards are developed primarily by ISA99 as American National Standards, with simultaneous review and adoption by the Geneva-based Interna- tional Electrotechnical Commission (IEC) through IEC partner committee TC65, Industrial-Process Measurement, Control and Automation. With more than 900 members, ISA99 draws on the input of cybersecurity experts across the globe in developing the standards, which are ap - plicable to all industry sectors and critical infrastructure in providing a flexible and comprehensive framework to address and mitigate current and future security vulnerabilities in IACS. ISA99 Working Group 9 is cochaired by Suzanne Lightman of the U.S. National Institute of Standards and Technology, and Eric Braun of Emerson Automation Solu- tions. For information on ISA99, contact Eliana Brazda, ISA Standards, ebrazda@isa. org. For information on viewing or obtain- ing the ISA-62443 standards and technical reports, visit ■ ISA99 to develop report on IIoT cybersecurity standards | New Benchmarks & Metrics T he time-honored proportional, in- tegral, derivative (PID) algorithm is used in a vast majority of applica- tions for basic control and in many for ad- vanced control. However, there appears to be a widespread lack of understand- ing of the different forms, structures, and features, and of how performance objectives determine appropriate choices. Consequently, most of the capability of the PID is underutilized, reducing process safety, efficiency, and capacity, points out ISA Fellow, author, and mentor Greg McMillan, a widely recognized expert on process control who received the ISA Life- time Achievement Award in 2010. This concern prompted McMillan to propose a new ISA standards project on controller algorithms and performance, which has led to the recent formation of ISA5.9, Controller Algorithms and Per- formance. The new working group will function under the ISA5 committee, Doc- umentation of Measurement and Control Instruments and Systems. ISA5.9 will seek to clarify the algorithms used in industrial control systems to aid in their selection and application to improve manufacturing processes. The working group will develop technical reports, recom- mended practices, and standards document- ing the algorithms used in industrial control systems and the measures of performance for those algorithms. The documents may include guidance on algorithm selection. ISA5, the oversight committee for ISA5.9, is also responsible for the widely used stan- dard ISA-5.1, Instrumentation Symbols and Identification. The committee is chaired by former ISA Standards & Practices De- partment vice president Tom McAvinew, co-author of the ISA book Control System Documentation: Applying Symbols and Identification. The ISA5.9 cochairs are Yamei Chen of Eli Lilly and Company, Indianapolis, and Mi- chel Ruel of BBA, Québec. Those who are interested in participating in the new ISA5.9 are asked to contact Charley Robinson, ISA Standards, ■ New ISA5.9 project to focus on controller algorithms and performance New control valve terminology standard I SA75, Control Valve Standards, has completed a revision of ISA-75.05.01, Control Valve Terminology. The standard provides a glossary of definitions commonly used in control valve applications across industry. The standard includes a number of new or significantly revised terms, including backlash, cage guiding, intelligent/smart po- sitioner, quick change trim, globe valve body, hysteresis, port guiding, and post guiding. ISA75 is chaired by James Young of the Dow Chemical Company. For information on ISA75, contact Eliana Brazda, ISA Stan- dards, For information on viewing or obtaining ISA-75 standards and technical reports, visit findstandards. ■ Send it to Have an idea for an ISA standard, book, training course, conference topic, or other product or service?

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