Emerson Exchange 365

Centralized, Distributed, and Hybrid Safety Instrumented Systems

Emerson’s Mike Boudreaux alerted me to a great article comparing safety instrumented system architectures. The ISA InTech article, Centralized or distributed process safety compares and contrasts centralized, distributed, and hybrid safety systems. Centralized systems have a single logic solver with all safety I/O routed and hardwired back to it. Distributed systems locate the logic controllers [...]

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