Ethernet-APL简介及在SIS系统的应用展望

Introduction to Ethernet-APL and Prospects for its application in Safety Instrument ed Systems

简述了以太网高级物理层(Ethernet-APL)技术的发展历程。针对化工装置对全厂控制系统高可靠性和复杂性的要求,从新的以太物理层开放标准用于过程自动化和现场仪表的角度出发,阐述了APL技术的特点及在流程工业的应用优势。介绍并分析了以太网高级物理层在SIS安全仪表系统的应用前景和系统架构的特征,以期为推动APL技术的应用提供参考。

The development history of Ethernet Advanced Physical Layer(Ethernet-APL)technology is briefly described.Aiming at the requirements of chemical plants for high reliability and complexity of plant-wide control systems,the features and advantages of APL technology are described from the perspective of the new open standard of Ethernet physical layer for process automation and field instrumentation.The application prospects of Ethernet-APL in safety instrumentation system and the characteristics of system architecture are introduced and analyzed with a view to providing reference for promoting the application of APL technology.