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.

Date of Patent:
Feb. 24, 2026

Filed:

Dec. 28, 2022
Applicant:

Yokogawa Electric Corporation, Tokyo, JP;

Inventors:

David Emerson, Coppell, TX (US);

Patrick Clay, Frisco, TX (US);

Vien Nguyen, Frisco, TX (US);

Hidenori Sawahara, Spring, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 41/0686 (2022.01); H04L 41/069 (2022.01); H04L 67/141 (2022.01);
U.S. Cl.
CPC ...
H04L 41/0686 (2013.01); H04L 41/069 (2013.01); H04L 67/141 (2013.01);
Abstract

Implementations relate to receiving, from a distributed control node (DCN) that includes a corresponding active alarm engine, an alarm configuration transmission that includes a network addressable DCN identifier of the DCN and also includes a direct or indirect indication that the DCN is implementing alarm monitoring that is based on function block(s) of a process automation system. Implementations further relate to, in response to receiving the alarm configuration transmission and determining that no persistent connection-oriented communication session is established between an alarm viewer and the DCN indicated by the addressable DCN identifier of the alarm configuration transmission, causing the alarm viewer to establish a persistent connection-oriented communication session with the DCN using the addressable DCN identifier.


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