基于Profibus-DP总线的执行器接口模块设计  

Design of Interface Module for Actuator Based on Profibus-DP

作　　者：孙威[1] 石刚[1] 李正[1] 

机构地区：[1]中国科学院沈阳自动化研究所,辽宁沈阳110016

出　　处：《控制工程》2006年第4期391-393,共3页Control Engineering of China

摘　　要：针对大量不具有现场总线接口的执行器很难在网络远程化控制中发挥作用的问题,从改造传统执行器使其具有总线接口功能的工程应用实际出发,采用嵌入式系统的设计方法,以专用接口芯片SPC3为协议转换核心、AD7705和DAC7615为模拟前端,完成了执行器到Profibus-DP总线的接口模块设计,以较低的成本提高了执行器的智能化水平,达到了预期的设计目的。The problem that a mass of actuators without filed bus interface is difficult to take important effect in network remote control is analyzed. To improve traditional actuator automation level and make it have the function of filedbus interface, a module with Profibus-DP interface for actuator is designed and accomplished based on ARM embedded platform due to projects factual application. ASIC SPC3 is embedded for protocol translation, AD7705 and DAC7615 are embedded for analog signals front end. The module improves intelligent level of actuator at lowcost.

关 键 词：现场总线 Profdms-DP SPC3 执行器 ARM 嵌入式系统 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]