First WirelessHART device operating with WIO gateway (Wireless and Remote I/O).


The Fieldbus Foundation has released its High Speed Ethernet Remote I/O (HSE-RIO) preliminary specification for review by members and is now validating wired HART® and WirelessHART™ integration specifications. (See the article "HSE-RIO preliminary specification available for member review" elsewhere in this issue for more on the HSE-RIO topic.) Currently under test are laboratory prototypes of Wireless and Remote I/O (WIO) gateways from three major manufacturers; additional prototypes will be tested later in 2011.

At a WIO validation team meeting last November at the Fieldbus Foundation's facility in Austin, Texas, the first WIO gateway interconnecting WirelessHART devices to a wireless backhaul network was tested successfully. The WirelessHART process parameters were mapped into transducer blocks in the gateway according to the specification and communicated over the wireless backhaul network using the foundation's HSE protocol. As part of the proof of concept testing for WIO, the foundation's Interoperability Test Kit (ITK) system successfully tested the WIO gateway over a 300 megabit/sec wireless Wi-Fi backhaul network.

The next steps in the WIO program include final validation of the wired HART and WirelessHART specification. This development will give automation suppliers the opportunity to develop full WIO gateways initially running on a wired HSE backhaul. At the same time, the Wireless Sensor Interface Team (WSIT) and Fieldbus Foundation/ISA Cooperation (FIC) teams will work to finalize the first draft of the wireless backhaul specifications and address key requirements such as security. According to Dave Glanzer, Fieldbus Foundation director of technology development, the test results are an important milestone for the WIO effort. "The Fieldbus Foundation's WIO project will open the door to utilization of an open, interoperable fieldbus automation infrastructure incorporating both HSE and industrial wireless applications," said Glanzer. "This technology program has significant implications for the future of industrial automation."

For more information, visit the development resources page on the Fieldbus Foundation website.


Extracted from www.fieldbus.org website.