The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 2015
Filed:
Apr. 28, 2011
Alan A. Gale, Windham, ME (US);
Alan M. Foskett, Mansfield, MA (US);
Ronald C. Rippel, South Easton, MA (US);
Alan A. Gale, Windham, ME (US);
Alan M. Foskett, Mansfield, MA (US);
Ronald C. Rippel, South Easton, MA (US);
Invensys Systems, Inc., Foxboro, MA (US);
Abstract
In a network coupling redundant controllers to a control system, an electronic device is provided. The device comprises a first interface coupled to the control system addressed using a unique medium access control (MAC) address, a second interface coupled to a first redundant controller, and a third interface coupled to a second redundant controller. The device receives a first message via the first interface and transmits the first message via the second interface and via the third interface. The device receives a second message via the second interface and transmits the second message via the first interface. The device receives a third message via the third interface and transmits the third message via the first interface.