Wirelesshart

By Author: WirelessHART
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This 3rd edition includes a general update of events that have occurred since the previous edition. Of significance is an overview of new technology, such as ISA100.11a, WirelessHART, and WiFi, including IEEE 802.11n. For more information please visit this url:- http://www.awiatech.com/
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The protocol utilizes a time synchronized, self-organizing, and self-healing mesh architecture. The protocol supports operation in the 2.4 GHz ISM band using IEEE 802.15.4 standard radios. Developed as a multi-vendor, interoperable wireless standard, WirelessHART was defined for the requirements of process field device networks. The standard was initiated in early 2004 and developed by 37 HART Communications Foundation (HCF) companies that included ABB, Emerson, Endress+Hauser, Pepperl+Fuchs, Siemens and others. The underlying wireless technology is based on the work of Dust Networks' TSMP technology.[1]
WirelessHART was approved by a vote of the 210 member general HCF membership, ratified by the HCF Board of Directors, and introduced to the market in September 2007.[2] On September 27, 2007, the Fieldbus Foundation, Profibus Nutzerorganisation, and HCF announced a wireless cooperation team to develop a specification for a common interface to a wireless gateway, further protecting users' investments in technology and work practices for leveraging these industry-pervasive networks. Following its completed work on the WirelessHART standard in September 2007, the HCF offered ISA an unrestricted, royalty-free copyright license, allowing the ISA100 committee access to the WirelessHART standard.
Backward compatibility with the HART “user layer” allows transparent adaptation of HART compatible control systems and configuration tools to integrate new wireless networks and their devices, as well as continued use of proven configuration and system-integration work practices. It on the estimated 25 million HART field devices installed, and approximately 3 million new wired HART devices shipping each year. In September 2008, Emerson became the first process automation supplier to begin production shipments for its WirelessHART enabled products.[3]
During the summer of 2009 NAMUR, an international user association in the chemical and pharmaceutical processing industries, conducted a field test of WirelessHART to verify alignment with the NAMUR requirements for wireless automation in process applications.[4]

In April 2010, WirelessHart was approved by the International Electrotechnical Commission (IEC) unanimously, making it first wireless international standard as IEC 62591. For more information please visit this url:- http://www.awiatech.com/