Analysis on safety problem of communication network in device layer of thermal power plant

CUI Yiqun; WANG Wenqing; LIU Chaofei; BI Yubing; DONG Xiaxin

doi:10.19666/j.rlfd.202003042

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Analysis on safety problem of communication network in device layer of thermal power plant

更新时间：2025-09-28

- Analysis on safety problem of communication network in device layer of thermal power plant
- Thermal Power Generation Vol. 49, Issue 6, Pages: 152-156(2020)
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202003042
  CLC： TP393.04
- Published Online：24 May 2020，
  
  Published：2020
- 稿件说明：
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CUI Yiqun, WANG Wenqing, LIU Chaofei, et al. Analysis on safety problem of communication network in device layer of thermal power plant[J]. Thermal power generation, 2020, 49(6): 152-156.
DOI：

CUI Yiqun, WANG Wenqing, LIU Chaofei, et al. Analysis on safety problem of communication network in device layer of thermal power plant[J]. Thermal power generation, 2020, 49(6): 152-156. DOI： 10.19666/j.rlfd.202003042.

摘要

火电厂传统分散控制系统(DCS)设备层采用硬接线方式

不存在通信安全问题

随着公开、透明的工控协议通信网络代替传统DCS硬接线进入设备层

工控协议所具有的协议漏洞及容易受到网络攻击的特性开始显现。本文分析了火电厂控制系统设备层通信网络协议存在的漏洞和攻击问题

重点分析了攻击防护

并给出了攻击方式的示例。最后提出

在漏洞防护上

应采用管理措施和技术措施相结合;在攻击防护上

建议在实现PROFIBUS、MODBUS等工控协议时

增加时间戳和会话机制

或在建立PROFIBUS、MODBUS等工控协议通信前

实现基于身份的验证机制。

Abstract

The device layer of conventional distributed control system(DCS) in power plants adopts hardwired mode

so there is no talent problem in communication safety.With the open and transparent industrial control protocol communication network replacing the conventional DCS hardwire into the device layer

the protocol loopholes of industrial control communication protocol and the characteristics of being vulnerable to network attacks begin to highlight.This paper analyzes the loopholes and attacks of the communication network protocol in the device layer

focuses on the analysis of attack protection and gives an example of attack mode.At last

it points out that

on the protection of loopholes

management measures and technical measures should be adopted.It suggests to increase the time stamp and session mechanism when implementing industrial control protocols such as PROFIBUS and MODBUS

or to implement identity based authentication mechanism before establishing industrial protocol communication.

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