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The Computer Journal 1975 18(3):220-222; doi:10.1093/comjnl/18.3.220
© 1975 by British Computer Society
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Link systems for multi-computer control of a large process: Part 2—Fault detection

P. J. Comerford *

Computing Laboratory, University of Bradford, Bradford, UK

High integrity in a hostile environment is an essential feature of a multi-computer process control complex. Part 2 of this paper considers fault conditions associated with the inter-computer link system of such a complex and describes methods of detecting these conditions. The methods described are embodied in the scheme for inter-computer link construction defined in Part 1 of this paper. Assessments of their effectiveness are based upon experience with a working inter-computer link system constructed under the above mentioned scheme at the University of Bradford.

It is concluded that reliable detection of a wide range of fault conditions in a hostile environment is possible and that this may be achieved with little sacrifice of speed of normal working of the link system.

Received January 1973.

* Computing Laboratory, University of Bradford, Bradford BD7 1DP


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