Stealth interface for process control computers

Details Stealth interface for process control computers Stealth interface for process control computers

G - Physics

05

B

G05B 19/04 (2006.01) G05B 19/042 (2006.01) G05B 19/418 (2006.01) G06F 13/14 (2006.01)

Patent

CA 2137157

2137157 9325945 PCTABS00028 A stealth interface for an intelligent front-end communication system which couples a plurality of actively redundant process control computers to a computer network. The stealth interface in each of the actively redundant process control computers includes a multi-ported memory for storing dynamic data associated with the physical process and for transferring this data to a front end computer which is in communication with the computer network. The multi-ported memory also includes a mailbox section for storing messages sent between the front end computer and its actively redundant process control computer. The stealth interface also includes a guardian circuit which ultimately controls the ability of the front end computer to write information to specific memory locations in the multi-ported data memory.

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