September 2000

Process Control/Information Systems

Consider fieldbus for retrofits

Benefits result from reduced maintenance, greater safety and increased performance

Dunlap, R., Fisher-Rosemount

Economic benefits of the digital fieldbus instrument communication standard have been developed and studied for new construction cases. Versus a traditional analog installation, fieldbus achieves cost reduction through reduced footprint, shortened configuration and commissioning times, and reduced wiring and labor costs. These are easily tracked, tangible savings. Fieldbus implementation can also be economically beneficial in the case of retrofits and revamps of existing hydrocarbon processing plants. When calculating the life cycle cost and benefit of a plant, stages beyond construction must be considered. Although the economic di

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