摘要:研究了热电阻、热电偶等温度传感器的多路采集和处理电路,探讨了PROFIBUS-DP总线从站的功能与结构。基于SPC3分别设计了多路热电阻DP总线从站温度采集装置和多路热电偶DP总线从站温度采集装置,并给出了其接口电路硬件设计方案和系统程序软件设计方案。测试证实了2种DP总线温度采集装置的总线通信性能良好,温度采集精度较高。
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