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Method and system for solving equipment redundant in industrial control network

A technology for industrial control network and working equipment, applied in the field of communication, can solve the problems of redundancy of working equipment and backup equipment, cumbersome technical implementation, complicated implementation process, etc., and achieve the effect of avoiding interruption

Inactive Publication Date: 2007-10-03
SUPCON GRP +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned redundant method for working equipment, when communicating between each working equipment and its backup equipment, it is necessary to establish a dedicated data line for data communication, which is cumbersome in technical implementation; moreover, for important working equipment, when it is necessary to provide When connecting more than two backup devices, the implementation process is complicated and good redundancy technical effects cannot be obtained
At present, a unified communication protocol is formulated in the industrial control network, and the working equipment and backup equipment of different protocols can be connected to the control network, but how to realize the redundancy between the working equipment and the backup equipment in the industrial control network environment? Yu, has not been resolved

Method used

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  • Method and system for solving equipment redundant in industrial control network
  • Method and system for solving equipment redundant in industrial control network
  • Method and system for solving equipment redundant in industrial control network

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Embodiment Construction

[0056] First of all, the main steps of the present invention are introduced through an embodiment, referring to Fig. 1,

[0057] Step S101: The working device broadcasts a redundant device status declaration message to the network;

[0058] Step S102: within a predetermined period, if the backup device of the working device does not receive the declaration message from the working device, it will convert its state to the working state, and broadcast a redundant device state switching message in the network ;

[0059]Step S103: The device in the network that receives the switching message updates the communication connection with the working device to the communication connection with the backup device.

[0060] The method and system of the present invention will be described in detail below through specific embodiments and with reference to the accompanying drawings. Referring to Figure 2, the industrial control system shown in Figure 2 includes engineer stations, operator s...

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Abstract

A method for realizing device redundancy in industrial control network includes broadcasting declaration message of redundant device state in network periodically by operation device, switching itself state over on operation state by back-up device if said declaration message is not received by back-up device of operation device and broadcasting switchover message of redundant device in network, updating communication connection of operation device to be communication connection with said back-up device by device received said switchover message and set in network.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and system for equipment redundancy in an industrial control network. Background technique [0002] At present, in the industrial control system, whether the field equipment can operate normally will have a great impact on normal industrial production and personal safety. The industrial control system is characterized by strong real-time performance and a large amount of real-time data, emphasizing real-time performance. When the industrial control system is running, the data in the on-site control network are mostly real-time control data, and the real-time requirements are the highest, and the control equipment at the on-site control network layer is affected by various factors, requiring that the method of network equipment redundancy should not be too complicated. It cannot take a long time to run, and the communication load caused by the redundancy of field ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/22H04L12/24H04L12/56H04L12/28H04L45/16H04L45/24
Inventor 冯冬芹褚健陈高翔崔韬
Owner SUPCON GRP
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