Schneider Electric Usa, Inc.

Schneider Automation Gmbh

William E LeRette

Ronald H Naismith

Achim Zimmermann

Shaozheng Steven Jin

Aspects of the invention support different products having a host device and a communications device. The host device may interact with the communications device to exchange messages containing data objects over a fieldbus network for transporting messages containing data objects. Read/write requests to the fieldbus data objects may be answered locally in the communications device, or the fieldbus data object may be mapped to host data when host access is required. The communications device stores a profile image associated with a designated host type, so that the communications device may map the data object to host data for the host device and then exchange the host data with the host device. The communications device may subsequently interact with a different host type if a corresponding profile image is downloaded to the memory device.

Dynamic host profiles for option modules

The invention described herein provides a system and method for fault isolation and auto-recovery in chained loop or ring networking systems (). According to aspects of the method and the associated path-selection algorithms described, fault isolation and auto-recovery operations can be handled locally on each node on a loop and the overall fault recovery time under a link failure condition can be minimized. In addition, the method allows for auto-recovery operations that are transparent to the rest of network and to remote hosts.

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Tewksbury, MA, United States of America

William E LeRette