Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Reexamination Certificate
2005-03-08
2005-03-08
Padmanabhan, Mano (Department: 2188)
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
C711S113000, C710S001000, C710S005000, C710S049000, C712S224000, C700S002000, C700S018000
Reexamination Certificate
active
06865644
ABSTRACT:
A system and method for industrial control I/O forcing is provided. The invention includes a processor, shared memory and an I/O processor with cache memory. The invention provides for the cache memory to be loaded with I/O force data from the shared memory. The I/O processor performs I/O forcing utilizing the I/O force data stored in the cache memory. The invention further provides for the processor to notify the I/O processor in the event that I/O force data is altered during control program execution. The invention further provides for the I/O processor to refresh the cache memory (e.g., via a blocked write) after receipt of alteration of the I/O force data from the processor.
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International Search Report, EP 02 01 6569, mailed Feb. 3, 2004.
Dombrosky Dennis J.
Husted Raymond R.
Karpuszka David A.
Schultz Ronald E.
Amin & Turocy LLP
Padmanabhan Mano
Rockwell Automation Technologies Inc.
Song Jasmine
Speroff R. Scott
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