Sensor-actuator wireless industrial network technologies

When deciding among wireless industrial networking technologies, remember that there are different kinds of wireless. For industrial applications, there are at least four, and two are compared in the radar graphic shown.

05/22/2012


When deciding among wireless industrial networking technologies, remember that there are different kinds of wireless. For industrial applications, there are at least four, and two are compared in the graphic shown. (The other two are computer standards like Wi-Fi or Bluetooth and long-distance radio as used with RTUs.)

Radar chart estimates differences between wireless sensor and actuator networks for factory automation and process automation plotting suitability across 12 logarithmic axes. Courtesy: PI (Profibus and Profinet International), www.profibus.com

For actuator/sensor level wireless as compared in the graph, there are two unique application spaces: factory automation and process automation.

Compared to factory automation, wireless networks in process environments are characterized by slower update times and higher power requirements (though used intermittently). Wireless process devices are often powered by batteries or scavenged power (power generated by vibration, for example). Process wireless technologies are transitioning from proprietary to WirelessHART and ISA100.

Wireless factory automation sensors and actuators are often called upon to cycle with millisecond update times. These devices can be powered by the radio waves. Factory automation wireless uses proprietary technology today, but PI (Profibus and Profinet International) is developing a standard that uses the IO-Link protocol wirelessly.

Often wireless process and wireless factory devices are installed where Wi-Fi and Bluetooth are in use. Because the wireless spectrum is a limited resource, attention must be paid to avoid interference. A wireless site survey is a good starting point.

- Carl Henning is deputy director, PI North America, Profibus and Profinet, in North America (formerly PTO); Edited by Mark T. Hoske, content manager CFE Media, Control Engineering, Plant Engineering, and Consulting-Specifying Engineer. He can be reached at mhoske@cfemedia.com.

www.us.profibus.com 

www.AllThingsProfinet.com 

www.bluetooth.org

www.Wi-Fi.org

www.wirelessHart.org 

www.isa.org/isa100

http://controleng.com/wireless

http://controleng.com/networks



No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
2016 Engineering Leaders Under 40; Future vision: Where is manufacturing headed?; Electrical distribution, redefined
Strategic outsourcing delivers efficiency; Sleeve bearing clearance; Causes of water hammer; Improve air quality; Maintenance safety; GAMS preview
World-class maintenance: The three keys to success - Deploy people, process and technology; 2016 Lubrication Guide; Why hydraulic systems get hot
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Applying network redundancy; Overcoming loop tuning challenges; PID control and networks
Driving motor efficiency; Preventing arc flash in mission critical facilities; Integrating alternative power and existing electrical systems
Package boilers; Natural gas infrared heating; Thermal treasure; Standby generation; Natural gas supports green efforts

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
This article collection contains several articles on the vital role that compressed air plays in manufacturing plants.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
This article collection contains several articles on strategic maintenance and understanding all the parts of your plant.
click me