New HART standard

The HART® Communication Foundation (HCF) has announced significant progress in the development of technical standards for Wireless HART Communication. Several key decisions were made when the HCF Wireless HART Working Group met in Singapore (7-9 Nov). Discussions centered on mesh networking, frequency hopping, security/encryption, prototype test results and field trial experiences. The Working Group voted to use IEEE 802.15.4 RF transceivers for the physical layer of Wireless HART. According to HCF Chief Engineer Wally Pratt, the new Wireless HART standard will provide new capabilities, ensuring seamless solutions for connecting HART devices in a wireless environment by supporting all three communication channels, 4-20mA analog, standard HART and wireless HART, the HART protocol allows end users to choose the communication paths that best fit their application.

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