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现场总线是目前自动控制技术发展的趋势 .基金会现场总线 (Foundation Fieldbus)在众多现场总线中脱颖而出 ,成为技术上最先进的现场总线 .基于基金会现场总线标准的用户层协议的实现有助于开发面向仪器、仪表等控制设备的应用 ,促进我国自控技术的数字化、智能化进程 .本文从协议及软件的角度分析了用户层协议 ,给出了基金会现场总线用户层协议的设计模型及实现方法 .
Fieldbus is the current trend in automation technology, and Foundation Fieldbus stands out as the most technologically advanced fieldbus among many fieldbus implementations. The implementation of a user-level protocol based on FOUNDATION fieldbus standards helps Development and application of control equipments such as instruments and meters to promote the digitization and intelligentization process of self-control technology in our country.This paper analyzes user layer protocol from the perspective of protocol and software and gives the design model and implementation of FOUNDATION fieldbus user-layer protocol Method.