CC-Link组织、通信协议与技术应用

摘要

CC-Link是Control & Communication Link的简称,是一种可以同时高速处理控制和通信数据的现场网络系統,可以提供高效能、一体化的工厂和过程自动化控制.CC-Link协会(CC-Link Partner Association:CLPA)是一个非盈利性机构(NPO),由众多开发"CC-Link"产品的制造商会员組成,它建立的目的是在全球推广CC-Link,始初由三菱电机发布的CC-Link现场总线技术规范,作为一个开放的工业标准,已经全国工业过程测量、控制和自动化标准化技术委员会秘书处转化的标准包括CC-Link GB/T 19760.1—.3;CC-Link/LT GB/T 19760.4;CC-Link Safety GB/Z 29496.1—.3.CC-Link现场总线技术关键特色是RAS(可靠性、可用性、可维护性)功能,以及非常高的抗干扰标准,这使得它很难让常规工厂事故中断网络运行.CLPA提供的另一个关键网络技术是基于以太网的工业网络CC-Link IE(正在转化中),是标准的工业以太网,有控制层网络和现场层网络两种主要的提供形式.具备多厂商设备使用环境,高性能的网络,广泛应用在钢铁、烟草、印刷、楼宇、汽车装配线等机电控制系统.%CC-Link is the abbreviation of Control & Communication Link. It is a kind of field control network which can process control and communication data at the same time with a high speed. CC-Link Association (CC-Link Partner Association: CLPA) is a non-profit organization (NPO) developed by many "CC-Link" products manufacturer members, whose purpose is to promote CC-Link technology all around the world. The speciifcation of CC-Link ifeldbus technology is ifrstly published by Mitsubishi Electric. As an open industrial standard, many specifications have been transformed as Chinese national standards by SAC/TC124,including CC-Link GB/T 19760.1~.3, CC-Link/LT GB/T 19760.4, and CC-Link Safety GB/Z 29496.1~.3. The key characteristics of CC-Link ifeldbus technology is RAS (reliability, availability and maintainability) and a high standard of anti-interference, which can protect the network against conventional factory accidents. Another important network technology provided by CLPA is CC-Link IE (the national standard is under transforming) which is based on Ethernet. It is the normal Ethernet and provides two main forms as control version and ifeld version. CC-Link IE can be used with devices of various manufacturers and has high performance network. It is widely used in iron and steel, tobacco, printing, building, automobile assembly line and other mechanical and electrical control systems.