文件名称:HART协议简介
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HART协议由Rosemount公司开发且已向每个使用者开放HART协议采用标准的Bell 202频移键控信号以1200波特通信以低电平加载于4mA~20mA模拟信号上，由于载波信号的平均值为零所以它对模拟信号没有影响。-HART agreement develops by Rosemount Corporation also opened
the HART agreement to each user to use the standard the Bell 202
frequency-shift keying signal increase by 1,200 bauds correspondences
by the low level on the 4mA~20mA simulated signal, because
intelligence signal mean value for zero therefore it has not affected
to the simulated signal.
the HART agreement to each user to use the standard the Bell 202
frequency-shift keying signal increase by 1,200 bauds correspondences
by the low level on the 4mA~20mA simulated signal, because
intelligence signal mean value for zero therefore it has not affected
to the simulated signal.
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HART协议简介.pdf
www.dssz.com.txt
www.dssz.com.txt
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