Progress on wireless Hart standard
A
Hart Communication Foundation product story
Edited by the Engineeringtalk editorial team
Dec 22, 2005
The Hart Communication Foundation announces significant progress in the development of technical standards for wireless Hart communications.
The Hart Communication Foundation (HCF) has made progress in developing technical standards for wireless Hart communications.
Several key decisions were made when the HCF Wireless Hart Working Group met in Singapore in November.
Discussions centred on mesh networking, frequency hopping, security, encryption, prototype test results and field trial experiences.
Kelly Orth, Chairman of the Wireless Hart Working Group, said: "We are on target for completion of draft specifications in spring 2006".
"The working group voted to use IEEE802.15.4 RF transceivers for the physical layer of wireless Hart which allows us to move forward and focus on other layers of the protocol".
The working group meets each month and is coordinating activities with other industry wireless organisations, such as the ISA SP100 Wireless Committee, to ensure continuity and uniformity with wireless standardisation efforts.
Users can expect wireless Hart devices to be available at the end of the year.
"The Hart protocol is a good match for emerging wireless mesh networks in part because it does not place heavy throughput or latency demands on the physical layer," said Harry Forbes, Arc Advisory Group Senior Analyst.
"The HCF is doing good work that will accelerate the adoption of wireless process instrumentation".
HCF member companies participating in the group include automation suppliers and wireless technology companies: ABB, Adaptive Instruments, Dust Networks, Elpro Technologies, Emerson Process Management, Endress+Hauser, Flowserve, Honeywell, Mactek, Omnex Control Systems, Pepperl+Fuchs, Phoenix Contact, Siemens, Smar and Yokogawa.
HCF Chief Engineer Wally Pratt said: "By supporting all three communication channels, 4-20mA analogue, 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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