异构PLC控制系统网络通信

来源期刊：冶金自动化2010年第4期

论文作者：王建新

文章页码：61 - 64

关键词：异构可编程控制器； 以太网网关； 网络通信

Key words：heterogeneous PLC； gateway for Ethernet； networking and communication

摘    要：钢铁企业经过改扩建后,自动控制系统大多使用多种类型的PLC。如何利用网络互联的方法,实现异构PLC系统之间的通信,具有非常现实的意义。本文介绍了唐山钢铁集团有限责任公司炼铁厂原料自动控制系统改造过程中,通过第3方网关实现GE Fanuc公司的GE90-70 PLC与罗克韦尔公司的ControlLogix控制系统之间的网络通信,以确保系统改造过程中生产的连续性,减少设备停机时间。此项技术也可以为同类企业的技术改造提供技术依据。

Abstract: Constant revamping and upgrade in iron and steel enterprises have made it common that the automatic control systems deployed comprise various types of PLC systems.How to network heterogeneous PLC systems and facilitate communications is often a significant issue in practice.In this paper,a practical example that was conducted during the revamping of automatic system for raw material stockyard control in Tangshan Iron and Steel Group Co.,Ltd.is given to demonstrate how the communication between GE 90-70 PLC and Rockwell ControlLogix control system is realized by using a gateway from third-party vendor,and how continuity of production is ensured and equipment downtime is reduced.Hopefully the presented example will be inspiring to enterprises that are going to carry out similar technical revamping.