摘要
本文主要讨论ABB S+DCS系统与S7-200 SMART PLC之间通过MODBUS RTU协议进行实时通信在火电厂辅机系统中的应用,主要介绍了MODBUS协议的类型、主要内容、报文格式以及校验方式;S7-200 SMART PLC Modbus通信的寻址方式;ABB S+DCS寻址方式;串口服务器的硬件配置以及软件组态。
This article mainly discusses the application of real-time communication between ABB S + DCS system and S7-200 SMART PLC through MODBUS RTU protocol in auxiliary system of thermal power plant. It mainly introduces the types, main contents, message format and verification mode of MODBUS protocol, addressing mode of S7-200 SMART PLC Modbus communication, addressing mode of ABB S + DCS;Hardware configuration and software configuration of serial server.
出处
《科技创新导报》
2019年第26期123-127,共5页
Science and Technology Innovation Herald
