![]() ExxonMobil, for one, couldn’t be happier with the results. Less than seven years later-two years ahead of schedule-Honeywell delivered a system that fit the bill. Honeywell and ExxonMobil put together a task team to study the problem. “We issued a challenge to Honeywell to prevent this from happening.” “So we did what we do best,” said Patin, a distinguished engineering associate in the Automation Division-Control Systems Section at ExxonMobil Research and Engineering. The fact is that ExxonMobil was facing a massive rip and replace. The Motorola processor released in 1990 will no longer be produced, and a key network chip was taken out of production in the early 2000s. ExxonMobil has also developed a significant amount of intellectual property (IP) around the system, including supervisory control, displays and third-party interfaces.īut several key hardware components are approaching end of life around 2025. Despite the 30+ years of equipment service, nobody wants to hear the words “rip and replace.” Replacing any DCS is very expensive, risky and disruptive to operations. ![]() The TDC 3000 was a state-of-the-art DCS in 1985. When David Patin asked an audience of Honeywell customers how many of them were-like ExxonMobil-running the TDC 3000 in their facilities, a significant number of them raised their hands. As an oil and gas supermajor, ExxonMobil has a large installed base of legacy distributed control systems (DCSs) running its operations. ![]()
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