| 智能阀门定位器EPA高速通信模块的开发 |
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| 引用本文： | 石成华,杨彬,王文亮,赵洋.智能阀门定位器EPA高速通信模块的开发[J].仪表技术与传感器,2009(12). |
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| 作者姓名： | 石成华 杨彬 王文亮 赵洋 |
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| 作者单位： | 中环天仪股份有限公司,天津,300384 |
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| 摘 要： | 介绍了智能阀门定位器EPA高速通讯模块的设计原理和方法,模块核心为ARM7处理器AT91R40008和AX88796网卡芯片,采用DPRAM实现与阀门定位器高速并行数据通信,内嵌μC/OS-II实时嵌入式操作系统和EPA工业以太网协议栈.测试结果表明:采用该EPA模块的阀门定位器通讯具有较高的精度、实时性和通用性.
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| 关 键 词： | 阀门定位器 EPA实时工业以太网 双端口RAM 嵌入式实时操作系统 |
Development of EPA High Speed Communication Module for Intelligent Valve Positioner |
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| SHI Cheng-hua,YANG Bin,WANG Wen-liang,ZHAO Yang.Development of EPA High Speed Communication Module for Intelligent Valve Positioner[J].Instrument Technique and Sensor,2009(12). |
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| Authors: | SHI Cheng-hua YANG Bin WANG Wen-liang ZHAO Yang |
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| Abstract: | The paper introduced the principle,hardware design of EPA high speed communication module for intelligent valve positioner.The core of this module is AT91R40008 based on ARM7TDMI and AX88796 for ethernet control.A dual-port RAM was used for high speed data exchange between ARM and valve positioner.The real time embedded OSμC/OS-II and the EPA ethernet for plant protocol was adopted.From the result of the test,valve positioner based on EPA high speed communication module has higher precision,real time,and more applicability. |
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| Keywords: | valve positioner EPA real-time ethernet for plant dual-port RAM embedded real-time OS |
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