The HART Communication Protocol (Highway Addressable Remote Transducer) is a hybrid analog+digital industrial automation open protocol. Its most notable advantage is that it can communicate over legacy 4–20 mA analog instrumentation current loops, sharing the pair of wires used by the analog-only host systems.

Simply put, the HART (Highway Addressable Remote Transducer) Protocol is the global standard for sending and receiving digital information across analog wires between smart devices and control or monitoring system or Handheld communicators.

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

HART is a command/response protocol where a host sends commands and a remote transmitter returns standardized responses. The data received by the commands can communicate device status and diagnostics.

2 days ago · To review, HART is a digital data communication protocol that is layered on top of a traditional analog 4 – 20 milliamp signal which provides advanced data retrieval and configuration options to be executed remotely from a DCS or PLC system or from a hand-held communicator.

HART stands for: Highway Addressable Remote Transducer. The HART communication protocol has become a widespread solution, allowing for convenient and efficient parameterization of smart (intelligent) measuring devices.

HART is a versatile method of communication for a variety of industrial automation applications. The method itself offers many benefits that reduce cost, simplify designs and provide results, including: • Transmission of digital information without interrupting the primary analog signal.

The Highway Addressable Remote Transducer (HART) protocol has been a cornerstone of industrial communication for decades, bridging the gap between analog and digital systems. Its evolution has kept it relevant in modern automation, where precision, diagnostics, and real-time communication are vital.

The term HART in HART protocol stands for “Highway Addressable Remote Transducer” which is an open standard protocol used worldwide to transmit & receive digital data with analog wiring in between smart devices & control systems. This protocol is very popular, so above 30 million devices across the globe are powered with the HART protocol.

HART, an acronym for Highway Addressable Remote Transducer, is an open process control network protocol and was introduced in the late 1980s. It is a hybrid communication protocol that uses the Bell 202 Frequency Shift Keying (FSK) technique to superimpose digital communication signal on top of the analog 4–20 mA current loop signal.