摘要
本文介绍了S7-200系列PLC在水电站集散监控系统中网络通信的程序设计,对PLC的组网特点和MODBUS协议下PLC通信程序的模块化设计作了详细阐述。
This paper introduces the communication programming for S7-200 series PLCs in the distributed control system of hy-dropower station. Besides, the characteristics of PLC network, the modularized programming of PLC communications based on MODBUS protocol is presented in detail.
出处
《电气自动化》
北大核心
2001年第1期44-47,共4页
Electrical Automation
