One of the main concerns from users of process safety systems is how to effectively protect the SIS against unauthorized changes of the safety logic. The traditional protection approach is based on a key switch on the safety PLC; before somebody can alter the safety...
En este episodio el experto en Sistemas de Control y Sistemas Instrumentados de Seguridad, Sergio Díaz, nos comenta sobre las consideraciones más importantes en términos de ciberseguridad en los sistemas de las plantas. Hablamos sobre arquitecturas recomendables,...
Storage tanks containing hazardous materials require safety instrumented systems (SIS) to prevent overfills. Digital technology in the latest level measurement devices used in SIS enables them to be proof-tested remotely, which provides significant advantages. The...
There can be little doubt that COVID-19 has significantly changed the way we all work, and a key example of that change is a massive increase in remote connectivity across industries. In a recent Control Design article examining how COVID has altered the manufacturing...
Traditional safety systems have a centralized architecture, meaning that a large processor unit runs hundreds of safety instrumented functions (SIF). Modern safety systems have a distributed architecture where multiple smaller processor units execute dozens of SIFs....
A plant’s basic process control system (BPCS) and safety instrumented system (SIS) are critical infrastructure for the facility. Many decisions go into selecting these systems, and one of the most important is selecting the right architecture—a decision that will...
Safety and risk reduction are both high priorities for operators in the process industry. Not only is it critical to maintain the health and safety of personnel, but past industrial incidents have caused extensive damage to nearby areas, causing harm to residents and...
Creating a safe and secure automation process starts with implementing a well-designed basic process control system (BPCS) and safety instrumented system (SIS). Government agencies and industry associations offer guidelines and requirements for how these systems...
Measurement instrumentation has traditionally been used by process manufacturers to control their processes safely and reliably. This instrumentation may not be enough to operate the process as efficiently as possible. In a recent comment to one of my earlier posts,...
Emerson's Chris Womack highlights a liquefied petroleum gas (LPG) project in Mexico in today's guest post. In liquid petroleum gas terminals featuring partial automation, several systems control the plant's filling racks, custody transfer areas, and safety systems....
Imagine leaving some of your portable electronics out on a hot day. Now imagine leaving it out in a desert in the Middle East in the middle of an extremely hot summer. How long do you think it would last? Emerson's David Walker told the story, DeltaV SIS in the Heat...
Process safety is top of mind for most manufacturers in the process industries. During the general session at the NPRA 2010 Q&A and Technology Forum in Baltimore this week, the senior VP for refining at Sunoco, Anne-Marie Ainsworth, spoke about the need for...
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The opinions expressed here are the personal opinions of the authors. Content published here is not read or approved by Emerson before it is posted and does not necessarily represent the views and opinions of Emerson.