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Method and system for improving reliability of redundancy main station

A reliability and master station technology, applied in the field of redundant master stations, can solve problems such as site communication failure and data inability to transmit, so as to improve reliability and avoid massive data loss

Active Publication Date: 2008-10-29
ZHEJIANG SUPCON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The real-time data is transmitted between the master station 101 and the substation 103 through the field bus 102, but once the master station 101 fails, all the site communications between the master station 101 and the substation 103 will fail, and the data cannot be transmitted

Method used

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  • Method and system for improving reliability of redundancy main station
  • Method and system for improving reliability of redundancy main station
  • Method and system for improving reliability of redundancy main station

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Embodiment Construction

[0038] The invention provides a method for improving the reliability of a redundant master station. A working master station and a backup master station are designed. The two master stations use the same hardware and software, and the IP address network numbers of the two master stations are A, respectively. A+1, the standby master station copies from the working master station and updates the configuration in real time. Set the bus address to one of the master stations as n, and the bus address of the redundant master station is automatically assigned to n-1, and the range of n is 1-125. These two master stations adopt the hot backup working mode, and both are in real-time operation state. When the working master station fails, judge the fault level. The master station switches to the working master station and continues to communicate with the substations.

[0039] In order to make the above objects, features and advantages of the present invention more comprehensible, spec...

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PUM

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Abstract

The invention provides a method for enhancing the reliability of redundant master stations, which comprises the following steps: two or more redundant master stations are electrified for taking over working privilege; the mater station which takes over the working privilege is the working mater station and the master station which does not take over the working privilege is the standby master station; the standby master station transmits information of breakdown of the standby master station self through a redundant communication channel to the working master station which judges the breakdown level of the standby master station and the working master station self; if the breakdown level of the working master station is higher, the working privilege is handed over to the standby master station which is switched as the working master station. Meanwhile, the invention also provides a system for enhancing the reliability of the redundant master stations. With the invention, when the working master station is broken down, the standby station can be switched as the working master station, which greatly enhances the reliability of the communication between the master station and a slave station.

Description

technical field [0001] The invention relates to the field of redundant master stations, in particular to a method and system for improving the reliability of a redundant master station. Background technique [0002] Profibus includes three compatible parts, namely Profibus-DP, Profibus-PA and Profibus-FMS. Profibus-DP (Decentralized Periphery) is an optimized high-speed and cheap communication connection for communication between device-level control systems and distributed I / O; Profibus-PA (Proces Automation) is suitable for process automation in industrial production; Profibus-FMS (Field Message Specification) is used for object-oriented occasions, general-purpose data communication between the unit layer and the field layer in the industrial automation system. Because the Profibus field bus has good open performance, strong interoperability and replacement, as long as it is a field bus device that supports the Profibus protocol, it can be easily integrated in the Profibu...

Claims

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Application Information

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IPC IPC(8): H04L1/22H04L29/06
Inventor 张晓刚郭炜剑江竹轩庞欣然姚杰
Owner ZHEJIANG SUPCON TECH