针对HART协议产品的要求，开发了基于HART协议的智能定位器接口卡，给出了具体的硬件设计，特别是针对阀门定位器的低功耗特性作出了分析。同时也介绍了智能阀门定位器的软件设计。关键词MSP430 HT2012 HARI，协议智能电气阀门定位器Abstract In accordance with the requirements of products of HART protocol, the interfac吨card for inteligent positioner based on HART protocol isdeveloped. Practical hardware design is given, especialy the low power consumption characteristic of the valve positioner is analyzed.玩addition, thesoftware design，of inteligent valveMSP430 HT2012positioner is also introduced.接口卡与电气阀门定位器的总体结构HA RT 接 口卡把智能电气阀门定位器和HART主机设备连接起来，从而实现对智能电气阀门定位器的远程操作。HART接口卡与电气阀门定位器结构如图1所示。
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