HART Communication Foundation

Smart Instrument Communication

HART Foundation logoIn January 2012, IMTEX joined the HART Communication Foundation. HART is an international, not-for-profit membership organisation. It is the technology owner and standards setting body for the HART Communication Protocol, the global standard for smart instrument communication.

The majority of smart field devices installed worldwide today are HART-enabled. But some new in the automation field may need a refresher on this powerful technology.

IMTEX MD Ian Turner with the HART certificate

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.

HART is a bi-directional communication protocol that provides data access between intelligent field instruments and host systems. A host can be any software application from technician’s hand-held device or laptop to a plant’s process control, asset management, safety or other system using any control platform.

HART technology offers a reliable, long-term solution for plant operators who seek the benefits of intelligent devices with digital communication – that is included in the majority of the devices being installed.  In many cases however, most applications cannot retrofit their existing automation systems with a system that can accept the digital data which is provided by the HART Protocol.

Because most automation networks in operation today are based on traditional 4-20mA analog wiring, HART technology serves a critical role because the digital information is simultaneously communicated with the 4-20mA signal. Without it, there would be no digital communication.

For more information, visit www.hartcomm.org

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