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:
May. 24, 2022
Filed:
Jun. 04, 2020
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Armand J. Craig, Kent, OH (US);
Eric Eilberg, Rocky River, OH (US);
Stephen Wenner, Akron, OH (US);
Timothy C. Mirth, Hudson, OH (US);
Nicholas R. Garcias, Richmond Heights, OH (US);
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
To facilitate redundancy in a distributed control system architecture used in an industrial automation environment, a user workstation is connected to multiple enterprise access switches. Separate physical connections established between an application server and the enterprise access switches are configured into a single virtual interface for the application server to provide physical media redundancy between the application server and the enterprise access switches. Redundancy switches are connected to the enterprise access switches and to a first LAN and a second LAN, and are assigned unique IP addresses but communicate using a same default gateway IP address to serve as redundant default gateways. The redundancy switches are configured with a redundancy protocol that enables transmission of duplicate data packets over the first LAN and the second LAN. Redundant industrial controllers are connected to both the first LAN and the second LAN, wherein the redundant industrial controllers utilize non-swapping IP addresses.