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HART communication

Hirotaka Matsumoto
Guru 27525 points

HI all,

Would you mind if we ask HART communication?

<Question>
We'd like to know about HART communication standard.
We know that the wave cycle(1200bps, 2200bps) is used for "0" or "1" of bit data.
What is the current level( 4mA-20mA) used for?

Kind regards,

Hirotaka Matsumoto