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

Author

Hecht, Myron ; Agron, Jeffrey ; Hecht, Herbert

Author_Institution

SoHaR Inc., Los Angeles, CA, USA

fYear

1991

fDate

7-10 Apr 1991

Firstpage

253

Abstract

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

Keywords

distributed processing; fault tolerant computing; process computer control; ARCNET; automated restart; chemical processing system; distributed fault tolerant system; distributed recovery block; diverse interconnection paths; hardware faults; logging function; loose coupling; low cost distributed fault tolerant architecture; maintainability; network faults; periodic status messages; process control applications; replication; software faults; system supervisor node; Actuators; Chemical processes; Control systems; Costs; Fault tolerance; Fault tolerant systems; Hardware; Process control; System software; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '91., IEEE Proceedings of

Conference_Location

Williamsburg, VA

Print_ISBN

0-7803-0033-5

Type

conf

DOI

10.1109/SECON.1991.147748

Filename

147748