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HART protocol signal modulation concept

Signal modulation

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  Automation > Resource > Technique > Network > HART > Modem > Modulation  

  Hart modem technology basics

Hart analogical signal  

HART PROTOCOL SIGNAL MODULATION CONCEPT

HART - Digital signal modulation by frequency modulation (bit is 1 : frequency = 1200 Hz ; bit is 0 : frequency = 2400 Hz) with a level of 10 mA, that is ± 0,5 mA around the analogical signal of the measure over the 4-20 mA current loop.

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