Reader Feedback: No One Protocol for the Internet of Things

March 2, 2015
We are destined to have a multiplicity of protocols in our facilities.

Regarding, John Rezabek's February On the Bus column: I think we are destined to have a multiplicity of protocols in our facilities. Actuators and sensors will be at the level of the not-Internet of Things; Ethernet makes no sense there. But connecting AS-interface, IO-Link, FF, HART and ProfibusPA to the Industrial Internet of Things through intermediaries to Ethernet will allow integration with IIoT. I see Profinet as the backbone, with Profinet-specified proxies mapping data from the sensor level. Profinet connects devices to the controller, then OPC UA makes sense as the protocol upwards from the controller to the cloud/big data/analytics.

Carl Henning
Deputy Director, PI North America
[email protected]

[javascriptSnippet]

Sponsored Recommendations

Municipalities are utilizing inline total solids measurements to enhance sludge thickening, lower polymer usage and cut operational expenses.
Carbon dioxide is increasingly recognized as a vital resource with significant economic potential. While the conversion of carbon dioxide into products is still in its infancy...
Discover our wide range of temperature transmitters that convert sensor signals from RTDs and thermocouples into stable and standardized output signals!
An innovative amine absorption-based carbon capture process enables retrofitting of existing industrial facilities to reduce emissions in hard-to-abate sectors, with advanced ...