System and method for disseminating functional blocks to an...

Details System and method for disseminating functional blocks to an... System and method for disseminating functional blocks to an...

G - Physics

06

F

G06F 11/20 (2006.01) G05B 9/03 (2006.01) G06F 9/445 (2006.01)

Patent

CA 2383389

A system for, and method of, disseminating a functional block to a redundant controller for a real-time process control system and a real-time process control system incorporating the system or the method. In one embodiment, the system includes: (1) a dynamically linkable library object associated with the functional block and (2) a shared memory, associated with at least two nodes of the redundant controller, that receives the dynamically linkable library object and the functional block and provides concurrent access thereto by both the at least two nodes to ensure consistent memory images therefor without requiring one of the at least two nodes to be taken off-line.

L'invention concerne un système et un procédé permettant de diffuser un bloc fonctionnel vers une unité de commande redondante destiné à un système de commande de processus en temps réel, et un système de commande de processus en temps réel incorporant ledit système ou procédé. Selon un mode de réalisation, le système comprend 1) un objet de bibliothèque pouvant être lier en dynamique et associé au bloc fonctionnel et 2) une mémoire partagée associée à au moins deux noeuds de l'unité de commande redondante, qui reçoit l'objet de bibliothèque pouvant être lier en dynamique et le bloc fonctionnel, et permet aux deux noeuds d'accéder concurremment audit bloc, de façon à fournir des images mémoire cohérentes sans avoir besoin que l'un des deux noeuds soit hors ligne.

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