Modbus通信协议在CS3000中的应用

摘要

The contents and means of data transmission of the Modbus protocol are introduced.The application of CS3000 system and other subsystems in the plant is presented, the hardware disposition and software configuration for data exchange based on the Modbus are expounded.How the communication between CS3000 and intelligent control instruments of third part is realized by the Modbus communication protocol is described.That has made control and operation more convenient in the operation of refinery automatic control system and is worth promoting.%介绍了Modbus协议的含义及其数据传输方式,阐述了该厂CS3000系统与其他各子系统之间的应用,分析了基于Modbus进行数据交换的硬件结构配置及软件组态的应用.同时说明了利用Modbus通信协议来解决CS3000系统与第三方智能控制仪表之间的通信,在炼油自动控制系统的实际操作中极大地方便了现场的控制和操作,是一个值得推广的方式.