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A new low cost distributed fault tolerant architecture for process control applications

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3 Author(s)
Hecht, M. ; SoHaR Inc., Los Angeles, CA, USA ; Agron, J. ; Hecht, H.

A distributed fault tolerant system for process control based on an enhancement of the distributed recovery block has been implemented and integrated into a chemical processing system. Fault tolerance provisions in the system cover software faults by use of the distributed recovery block (DRB); hardware faults by means of replication, loose coupling, periodic status messages, and restart capability; and network faults by means of replication and diverse interconnection paths. Maintainability is enhanced through an automated restart capability and logging function resident on a system supervisor node

Published in:

Southeastcon '91., IEEE Proceedings of

Date of Conference:

7-10 Apr 1991