HART Communications Protocol
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The HART Communications Protocol is the leading communication technology used with smart process instrumentation. The HART Protocol continues to grow in popularity with more than two-thirds of all smart instruments shipping today communicate using the HART Protocol.
HART is field-proven, easy to use and provides highly capable two-way digital communication simultaneously with the 4-20mA analog signaling used by traditional instrumentation equipment.
Unlike other digital communication technologies, the HART Protocol provides a unique communication solution that is backward compatible with the installed base of instrumentation in use today. Designed to compliment traditional 4-20mA analog signaling, the HART Protocol supports two way digital communications for process measurement and control devices. Applications include remote process variable interrogation, cyclical access to process data, parameter setting and diagnostics.
