Edge Gateway 

The Edge Gateway is in close proximity to the sensors and actuators and it is usually located on a customer site or on the equipment itself. For example, a wind turbine might contain a hundreds sensors and actuators that feed data into an Edge Gateway. The Edge Gateway then collects, digitizes, and forwards the data to the cloud and, sometimes, may also have edge analytics which can take detect patterns and anomalies at the edge itself. Edge Gateways usually support various types of protocols, such as Modbus and OPCUA to connect with the various types of industrial sensors, as can be seen in the following diagram:

Edge Gateway ...

Get Industrial Internet Application Development now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.