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Interface method and apparatus for plant-level monitoring system and decentralized control system for power plant

A decentralized control system, factory-level monitoring technology, applied in the directions of comprehensive factory control, comprehensive factory control, electrical program control, etc., can solve the problem of unguaranteed network security, and achieve manual maintenance, reduce workload, use handy effect

Active Publication Date: 2006-07-12
南京科远智慧能源投资有限公司
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AI Technical Summary

Problems solved by technology

The network connection between the conventional SIS system and the DCS control system uses the above-mentioned firewall or physical isolation card, and its network security cannot be guaranteed

Method used

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  • Interface method and apparatus for plant-level monitoring system and decentralized control system for power plant
  • Interface method and apparatus for plant-level monitoring system and decentralized control system for power plant
  • Interface method and apparatus for plant-level monitoring system and decentralized control system for power plant

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Embodiment Construction

[0038] The implementation of the interface scheme is very simple, from the serial port of the DCS control system interface machine (usually the DCS control system operator station) through the EURO-4572 communication module, and the SIS / MIS are connected with the state network.

[0039] The Modbus protocol is a common language used in electronic controllers. Through this protocol, controllers can communicate directly with each other, with other devices via a network (such as Ethernet). This protocol defines a message structure that a controller can recognize and use, describes the process of a controller requesting access to other devices, if it responds to requests from other devices, and how to detect errors and record them. It specifies a common format for message domain layout and content.

[0040] When communicating on a Modbus network, the protocol dictates that each controller needs to know their device address, recognize messages sent by the address, and decide what a...

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Abstract

The invention discloses an interface method of power-plant factory level monitoring information system and dispersion control system (SIS and DCS), which is characterized by the following: adapting EURO-4572 mode and Modbus serial port to connect protocol; making SIS system and DCS control system accomplish data communication. The invention can transmit the data of DCS control system to SIS / MIS system effectively, which guarantees the safety of DCS control system against the attack of hacker and virus.

Description

1. Technical field [0001] The invention relates to a new data interface scheme between a plant-level supervisory information system (SIS) and a distributed control system (DCS) in a power plant, including an interface method and device, and thoroughly solves the network security problem of connecting the SIS system and the DCS system. 2. Background technology [0002] With the advent of the information age, the Internet has become the main way for people to obtain information. However, the dangers of the Internet are well known. While enjoying the convenience brought by the Internet, many enterprises and institutions are also suffering from virus attacks, hacker intrusions, confidential data leakage, etc.; in view of the various harms that may be brought about by the Internet, in order to minimize or avoid the harm, Various network security vendors and users also adopt a variety of different means. At present, the level of security protection is relatively high, and the mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418H04L29/06
CPCY02P90/02
Inventor 曹瑞峰黄峰程传良陈冬泉
Owner 南京科远智慧能源投资有限公司
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