Industrial Communications
HART
Digital information superimposed on a conventional 4-20 mA signal.
IN ONE SENTENCE
It keeps the analogue measurement while adding two-way digital communication.
In normal English
HART instruments can provide device identity, diagnostics, additional variables and configuration without abandoning the installed 4-20 mA loop.
Why would I use it?
Use it when you want more information from process instruments while retaining a traditional analogue signal.
THINK OF IT LIKE…
Digital data quietly hitching a ride on the 4-20 mA line.
Related terms
4-20 mA, WirelessHART, process transmitter
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