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HART devices

HART devices enable two-way field communication to take place and makes it possible for additional information beyond just the normal process variable to be communicated to/from a smart field instrument. 
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HART was the first protocol to implement the Device Description Language as its standard. DDL is the only technology endorsed by the HART Communication Foundation for configuration, set-up, maintenance and support of HART-enabled devices.

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How HART Works “HART” is an acronym for Highway Addressable Remote Transducer. The HART Protocol makes use of the Bell 202 Frequency Shift Keying (FSK) standard to superimpose digital communication signals at a low level on top of the 4-20mA.

HART was the first protocol to implement the Device Description Language as its standard. DDL is the only technology endorsed by the HART Communication Foundation for configuration, set-up, maintenance and support of HART-enabled devices.

HART devices enable two-way field communication to take place and makes it possible for additional information beyond just the normal process variable to be communicated to/from a smart field instrument.