Alarm viewer establishment of connection-oriented communication with a distributed control node of a process automation system

Patent metadata

Field	Value
Publication number	US-12562956-B2
Application number	US-202218090282-A
Country	US
Kind code	B2
Filing date	Dec 28, 2022
Priority date	Dec 28, 2022
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

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.

First claim

What is claimed is:

1 . A method implemented by one or more processors, the method comprising:
receiving, via a network of a process automation system, an alarm configuration transmission from a distributed control node (DCN) of the process automation system,
wherein, when the transmission is received, the DCN lacks any established communication session with an alarm viewer application of the process automation system, and
wherein the alarm configuration transmission indicates that the DCN is implementing alarm monitoring that is based on one or more function blocks of the process automation system, and includes a network addressable DCN identifier of the DCN;
in response to receiving the alarm configuration transmission:
providing the network addressable DCN identifier to the alarm viewer application;
wherein providing the network addressable DCN identifier to the alarm viewer application causes the alarm viewer application to:
establish, via the network and using the network addressable DCN identifier, a persistent connection-oriented communication session with an alarm engine of the DCN, and
cause rendering of alarm messages transmitted by the alarm engine of the DCN using the persistent connection-oriented communication session.

2 . The method of claim 1 , wherein the persistent connection-oriented communication session with the DCN is established utilizing Transmission Control Protocol (TCP).

3 . The method of claim 1 , wherein the network addressable DCN identifier includes an Internet Protocol (IP) address, and the alarm viewer application utilizes the IP address in establishing the persistent connection-oriented communication session with the DCN.

4 . The method of claim 3 , wherein the network addressable DCN identifier further includes a port, and the alarm viewer application utilizes the port in establishing the persistent connection-oriented communication session with the alarm engine of the DCN.

5 . The method of claim 1 , wherein the alarm configuration transmission is an alarm configuration request that includes the function block identifier, and wherein the DCN includes the function block identifier in the alarm configuration request based on the function block being assigned for use in alarm monitoring by the DCN.

6 . The method of claim 5 , further comprising:
transmitting, via the network of the process automation system and to the DCN, an alarm configuration file responsive to the alarm configuration file being stored in an alarms database in association with the function block identifier and the function block identifier being included in the received alarm configuration request,
wherein the DCN lacked the alarm configuration file prior to transmitting of the alarm configuration file to the DCN.

7 . The method of claim 1 , wherein the alarm configuration transmission is an alarm configuration notification that includes an alarm configuration file, and wherein the alarm configuration notification is transmitted by the DCN in response to the alarm configuration file being pre-loaded on the DCN or being configured via a direct connection with the DCN.

8 . The method of claim 1 , wherein providing the network addressable DCN identifier to the alarm viewer application comprises transmitting, to the alarm viewer application via the network, a push notification that includes the network addressable DCN identifier.

9 . The method of claim 8 , further comprising:
determining that the DCN lacks any established communication session with the alarm viewer application; wherein transmitting, to the alarm viewer application via the network, the push notification, is further in response to determining that the DCN lacks any established communication session with the alarm viewer application.

10 . The method of claim 1 , wherein providing the network addressable DCN identifier to the alarm viewer application comprises storing, in an alarms database, an association of the network addressable DCN identifier to one or more alarm configuration files and wherein the alarm viewer application monitors the alarms database for new network addressable DCN identifiers.

11 . A method implemented by one or more processors, the method comprising:
receiving, via a network of a process automation system, an alarm configuration transmission that:
is transmitted by a distributed control node (DCN) of the process automation system,
includes a network addressable DCN identifier of the DCN, and
includes a function block identifier of a function block, based on the function block being assigned for use in alarm monitoring by an alarm engine of the DCN;
in response to receiving the alarm configuration transmission and determining that no connection-oriented communication session between an alarm viewer and an alarm engine of the DCN is established:
establishing, via the network and by the alarm viewer using the network addressable DCN identifier, a persistent connection-oriented communication session with the alarm engine of the DCN;
subsequent to establishing the persistent connection-oriented communication session with the alarm engine of the DCN:
causing, by the alarm viewer, an alarm message to be rendered in response to the alarm message being transmitted to the alarm viewer by the alarm engine of DCN using the persistent connection-oriented communication session.

12 . The method of claim 11 , wherein the network addressable DCN identifier includes an Internet Protocol (IP) address, and the alarm viewer application utilizes the IP address in establishing the persistent connection-oriented communication session with the DCN.

13 . The method of claim 12 , wherein the network addressable DCN identifier further includes a port of a server, on the DCN, that implements the alarm engine, and the alarm viewer application utilizes the port in establishing the persistent connection-oriented communication session with the alarm engine of the DCN.

14 . The method of claim 11 , wherein the alarm configuration transmission is an alarm configuration request and further comprising:
transmitting, via the network of the process automation system and to the DCN, an alarm configuration file responsive to the alarm configuration file being stored in an alarms database in association with the function block identifier and the function block identifier being included in the received alarm configuration request,
wherein the DCN lacked the alarm configuration file prior to transmitting of the alarm configuration file to the DCN.

15 . The method of claim 11 , wherein the alarm configuration transmission is an alarm configuration notification that includes an alarm configuration file, and wherein the alarm configuration notification is transmitted by the DCN in response to the alarm configuration file being pre-loaded on the DCN or being configured via a direct connection with the DCN.

16 . A process automation system, comprising:
an alarms database that includes multiple function block specific alarm configuration files and, for each of the function block specific alarm configuration files, a corresponding association to a corresponding function block identifier; one or more alarm configuration processors executing stored instructions to:
receive, via the network, an alarm configuration request transmitted by a node of the process automation system, wherein the alarm configuration request includes:
a network addressable identifier of the node, and
a function block identifier of a function block, and includes the function block identifier based on the function block being a

Assignees

• Yokogawa Electric Corp

Inventors

• Emerson David
• Clay Patrick
• Nguyen Vien
• Sawahara Hidenori

Classifications

• H04L67/141 Primary

  Setup of application sessions (admission control or resource allocation in data switching networks H04L47/70) · CPC title

• H04L41/069

  using logs of notifications; Post-processing of notifications · CPC title

• H04L67/55

  Push-based network services · CPC title

• H04L41/0686 Primary

  Additional information in the notification, e.g. enhancement of specific meta-data · CPC title