Monday, October 21, 2013

Designing a Control System for High Availability

Art Pietrzyk, TUV FSExp, Rockwell Automation
Brian Root, Redundancy Marketing Manager, Process Initiative, Rockwell Automation
Paul Gruhn, P.E., CFSE, Training Manager, ICS Triplex

When hearing the term “high availability,” many engineers think of redundancy as the only method for achieving higher availability. However, redundancy increases the number of components, which increases the number of potential component failures. Therefore, redundancy, if not applied properly, can actually decrease system availability. So, should redundancy remain top-of-mind or should alternate methods be considered?

This paper will discuss redundant and non-redundant methods for achieving high availability of control systems, as well as improvements in control technology and recommended control system designs. The paper will also highlight features within the Rockwell Automation Integrated Architecture™ platform and ICS Triplex product lines that can help achieve higher availability.

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