Validation of the supervisory portion of a distributed fault tolerant control system
- SoHaR, Inc., Beverly Hills, CA (United States)
- Argonne National Lab., IL (United States)
The supervisory portion of a distributed fault tolerant control system (DFTCS) is responsible for managing redundancy, ensuring consistent control, and recovering from failures. Such software poses a unique set of challenges for validation testing. A test environment for such validation is described in this paper. Data has been collected on a total of 1000 test hours involving 2 million control actions and 700,000 randomly injected single and multiple faults. No anomalous behavior has been observed. Quantitative results include a coverage of 0.98 in the presence of an average of 2 simultaneous faults (maximum of 4 simultaneous faults) and an average response time (in presence of faults) of 10 msec when less than 2 simultaneous faults were injected. A separate long term stability test running at the Experimental Breeder Reactor II site of the Argonne National Laboratory West has been running continuously since November of 1991.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10149133
- Report Number(s):
- ANL/CP-75805; CONF-9206177-1; ON: DE92014866
- Resource Relation:
- Conference: COMPASS 92: computer assurance and safety conference,Gaithersburg, MD (United States),15-18 Jun 1992; Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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