HART COMMUNICATION PROTOCOL

HART is by far the largest digital communication technology employed in the process industries with over 40 million field instruments supporting HART technology installed worldwide.

HART is the global standard for sending and receiving digital information through 4-20 mA analog current loops that connect the vast majority of field instruments with distributed control systems. HART technology offers a long-term reliable solution for plant operators seeking the benefits of intelligent devices with digital communication, while preserving existing investments in analog instrumentation and plant wiring. Much more than a communication protocol, with HART technology process plants have access to a wide range of digital process, maintenance and diagnostic information. Useful information for the entire life cycle of the plant from design, installation and configuration, to operation and finally maintenance.

HART is simple, reliable and easy to use.

FieldComm Group owns the HART specification and provides development, training and registration services for technology-related products. Since its first release in the 90s, HART has become an IEC standard, has undergone three major revisions, and has retained backward compatibility of all previous versions.