Emergency Shutdown System (ESD)

The Occupational Safety and Health Administration (OSHA) and the Environmental Protection Agency (EPA) are responsible for developing guidelines for industries to follow to reduce incidences of industrial accidents. OSHA’s standard for process safety management applies to companies that produce or use, store, manufacture, or handle hazardous chemicals or which have critical processes. This standard applies to more than 28,000 firms; however, OSHA has specifically targeted a program for petrochemical, and oil and gas facilities, due to the high level of process hazards encountered in these industry segments. To meet the OSHA and EPA guidelines users must perform a hazard analysis of their process. Once the process has been analyzed, risk reduction is examined and hazards reduced within the constraints of the process. If the risk has not been reduced to an acceptable level, an Emergency Shutdown (ESD) or Fire and Gas protection system may be required. GE Fanuc has developed a Triple Modular Redundant (TMR) solution for ESD and Fire and Gas applications using standard PLC products. Called Genius Modular Redundancy (GMR), it consists of the Series 90-70 CPU system and GE Fanuc’s unique Genius I/O and VersaMax I/O. This approach is scaleable allowing the customer to match the level of redundancy with the level of risk reduction required for the process.

Typical Case