Highway Addressable Remote Transducer (HART) is a wired communication protocol that is extensively used in process industries. With over 40 million devices deployed, HART is the global standard for digital communication over 4-20 mA analog current loops, connecting distributed control systems with field instruments, such as sensors and actuators.
WirelessHART was introduced in 2007 as the first industrial mesh protocol that adds wireless capability to HART while maintaining backward compatibility with existing HART systems. WirelessHART uses a standard 802.15.4 radio transceiver that is restricted to the globally accessible 2.4 GHz frequency band. In the higher layers of the protocol stack, WirelessHART includes numerous adaptations and extensions over the 802.15.4 standard to meet the stringent needs of industrial applications, such as low latency, determinism, robustness, and security. This whitepaper provides an overview of WirelessHART, including system architecture and operation, WirelessHART protocol stack, and security.
Highway Addressable Remote Transducer (HART) is a wired communication protocol that is extensively used in process industries. With over 40 million devices deployed, HART is the global standard for digital communication over 4-20 mA analog current loops, connecting distributed control systems with field instruments, such as sensors and actuators.
WirelessHART was introduced in 2007 as the first industrial mesh protocol that adds wireless capability to HART while maintaining backward compatibility with existing HART systems. WirelessHART uses a standard 802.15.4 radio transceiver that is restricted to the globally accessible 2.4 GHz frequency band. In the higher layers of the protocol stack, WirelessHART includes numerous adaptations and extensions over the 802.15.4 standard to meet the stringent needs of industrial applications, such as low latency, determinism, robustness, and security. This whitepaper provides an overview of WirelessHART, including system architecture and operation, WirelessHART protocol stack, and security.