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Industrial Ethernet Book 99

Technology 32 Status and new developments with WirelessHART technology As the times change, control system integration is becoming more vital to industrial organizations looking to successfully navigate the turbulent seas of new and ever-evolving disruptive technologies. A new survey looks at the current challenges and future of industrial controls integration and automation networking. industrial ethernet book 4.2017 Technology THE WAY COMPANIES ARE LOOKING at instrumenting plants, wells, pipelines, and a wide variety of automation applications all around the world is changing because of IEC62591 WirelessHART instruments and devices. There are over 30,000 WirelessHART networks in operation today, in a variety of plants and facilities, monitoring a wide variety of process variables, in countries on every continent. The technology is proven-in-use, has well over 8 billion operating hours, and is easy to install and use. One key technology development is it’s not just for flow, level, pressure and temperature control applications any more. “We have been able to obtain temperature and flow data in areas that have never been possible,” said Rob Kearney, Sr. an Electrical Technician at Northstar Bluescope Steel. “We continue to expand our view of the mill with wireless technology. The reliability and performance of WirelessHART has made our steel mill more efficient, and has improved the safety and productivity of our workers.” Originally, it was thought that WirelessHART would be used to obtain flow, temperature, pressure and level data from locations in the plant where it was very difficult or impossible to connect a wired instrument. But quickly, it has been discovered that WirelessHART devices could also be used for measuring values that no one had thought worth measuring. “Inexpensive but rugged, devices like the Rosemount WirelessHART 708 acoustic sensor have unleashed the imaginations of operators who can deploy them with a screwdriver and a hose clamp. Catalyst transfer, kickback flow of fouling / polymerizing fluids, and valve leakage are just a sampling of the applications that incrementally improve the insight of curious operators into otherwise inscrutable process conditions,” said John Rezabek, Process Control Specialist at Ashland Inc.’s Lima BDO Manufacturing. “Once deployed, WirelessHART measurements are viewed by engineers, operators, and process specialists with the same credibility as wired instruments.” Saving energy with WirelessHART One of the novel new variables WirelessHART sensors like the 708 acoustic sensor measures is steam leakage from steam traps. Steam leakage is one of the most common losses of energy in plant operations, and it is costly. A relatively inexpensive sensor combined with a WirelessHART plant wireless network has made it possible not only to find those damaged or defective steam traps, but also to proactively sense leakage as it occurs and identify the steam traps that need service or replacement. Simplified system setup Michael Fischback, Facilities Engineer, Plains Exploration & Production Company, reported that “users can set up WirelessHART SOURCE: FIELDCOMM GROUP instrument mesh networks quickly. Out of a project cost of $750,000, only $10,000 was spent on installation.” When deployed using the FieldComm Group engineering guidelines, WirelessHART works in almost any environment including upstream or downstream, Arctic or Sahara, indoors or outdoors, with or without interferers or obstacles. WirelessHART technology is based on the Highway Addressable Remote Transmitter (HART) protocol that more than 30 million installed field devices use for programming, diagnostics and reporting secondary process variables. So there’s nothing radical about the transmitters. The difference is that the WirelessHART transmitter uses radio (the IEEE 802.15.4 standard) to communicate. Even conventional HART transmitters can join a WirelessHART network using a WirelessHART adapter. Nearly all major suppliers have WirelessHART adapters. WirelessHART field devices self-configure into a mesh network that includes an access point connected to a WirelessHART gateway. The gateway contains network management Designing a WirelessHART network. WirelessHART 708 acoustic transmitter.


Industrial Ethernet Book 99
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