Security system

Details Security system Security system

2006-08-22

2006-08-22

Baderman, Scott (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S012000

Reexamination Certificate

active

07096380

ABSTRACT:
The present invention relates to a programmable safety system intended to be used for safety functions, in which a fault in a control circuit does not lead to a safety function being disabled, which system comprises monitoring functions containing at least two control units, input terminals separately coupled to both control units, whereby each control unit executes its own instruction set and continuously compares a result from the execution with each other. At least one control unit can access the in and output terminal status of a second control unit and/or a number of flags, and the control units are arranged to monitor the result of respectively executed instruction sets and control that the results of the executions are substantially equivalent.

REFERENCES:
patent: 5367031 (1994-11-01), Marchin et al.
patent: 5799022 (1998-08-01), Williams
patent: 5915082 (1999-06-01), Marshall et al.
patent: 6065135 (2000-05-01), Marshall et al.
patent: 0748762 (1996-12-01), None
Davis, Leroy; CAN BUS, 1998; http://www.interfacebus.com/Design—Connector—Can.html.
EN954-1 Spec; 2002; www.hvbg.de/e/bia/pub/rep/rep02/pdf—date1/biar0697/3.pdf.

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