基于Modbus／TCP的火电厂实时数据集成及网络通信控制器研制  

Controller for real-time data collection and network communication based on Modbus/TCP in thermal power plant

作　　者：刘沛津 谷立臣[1] 韩行[1] 孙军阳 

机构地区：[1]西安建筑科技大学机电工程学院,陕西西安710055 [2]陕西维德科技股份有限公司.陕西西安710048

出　　处：《电力自动化设备》2009年第8期128-131,共4页Electric Power Automation Equipment

基　　金：陕西省工业攻关项目资助(2008K05-04)~~

摘　　要：研制了应用于火电厂给煤系统的火电厂实时数据集成及网络通信控制器,使用Modbus/TCP统一标准协议实现数据的实时通信,将异构设备接口通信归一化。控制器采用双处理器并行通信模式及分任务处理结构,双处理器在握手信号控制下,通过8位并行数据线传输数据,随之进行Modbus/TCP数据封装,将TTL电平信号转换成网络信号,通过工业以太网送至上位监控中心。所研制的控制器解决了现场异构设备不同通信规约带来的数据集成和传输问题。该控制器现场运行稳定可靠,满足研制要求。A controller for real - time data collection and network communication is developed for the coal feeder system of thermal power plant. Modbus/TCP protocol is used to realize the real- time data communication among different applications. It adopts the dual processors with parallel bus mode and task division construction. Data exchange between two processors is via 8- bit parallel data lines under the control of handshaking signal. The data are encapsulated according to Modbus/TCP protocol and the TTL signal is converted into network signal,which are then transferred to monitoring center via industrial Ethernet network. Its field operation is stable and reliable,satisfying the development requirements.

关 键 词：火电厂监控 数据集成 网络通信 双处理器 MODBUS/TCP 

分 类 号：TM611[电气工程—电力系统及自动化] TP278[自动化与计算机技术—检测技术与自动化装置]