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HMI Design: The Good, the Bad, and the Ugly

Poor HMI designs have been identified as factors contributing to abnormal situations, billions of dollars of lost production, accidents, and fatalities. Many HMIs actually impede rather than assist operators. Many of the poor designs are holdovers due to the limitations of early control systems and the lack of knowledge of system designers. However, with the […]

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Andy Chatha

IT as Enabler for Enterprise Value Networks

Andy Chatha, president and CEO at ARC Advisory Group, has over 30 years experience in enterprise applications and automation as an executive advisor, market analyst, project manager, and software engineer. He was interviewed for the May/June 2011 InTech magazine “Executive Corner” column. Excerpt from Chatha’s “Executive Corner”: As I mentioned in my opening remarks at […]

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In a SCADA system, a primary control center may be interconnected with a variety of remote locations as well as the corporate IT network.

Process Control Network Security Connectivity Simplified

The susceptibility of control systems to security issues continues to confront organizations. While it may be rare to penetrate a control system directly from the Internet, corporate connections, remote support links, USB keys, and laptops create pathways for the typical worm or advanced hacker. Once inside, attacking an industrial control system is not difficult—in some […]

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around-the-table

Face to Face: The Flip Side of Office eCommunication

  Did you know that the first spam in computer history was sent on May 3, 1978 by a Digital Equipment Corporation (DEC) employee? Over 400 people received a promotional message sent via the company’s ARPANET network.  Yes, email and spam and many of the other collaborative technologies used today are dated — pre-PC. In […]

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Modernization of a Municipal Waterworks with SCADA Standardization

The need for standardization led the City of Guelph’s Water Services department in Canada to embark on a multi-year program to modernize and enhance its Supervisory Control and Data Acquisition (SCADA) system using a standards-based approach. Starting with a comprehensive SCADA Master Plan, the city developed a set of SCADA standardization documents that were incorporated […]

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Control Valves in Process Safety Applications

Update: I received great news from Riyaz that the ISA Kuwait section has agreed to let us upload and link to their December 2009 newsletter containing Riyaz’s article, When is a Safety Integrity Level (SIL) Rating of a Valve Required? I’d like to thank the ISA Kuwait staff and encourage readers in this region to join and participate. […]

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