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IIoT system architecture

IIoT system architecture, in its simplistic view, consists of three tiers (as the following diagram illustrates):

Tier 1: Devices
Tier 2: The Edge Gateway
Tier 3: The cloud

Three-tier architecture of a typical IIoT end-to-end application

Tier 1 of the IIoT architecture consists of networked components, typically sensors and actuators, from the IIoT equipment, which use protocols such as Modbus, Zigbee, or proprietary protocols, to connect to an Edge Gateway. Tier 2 includes sensor data aggregation systems called Edge Gateways that provide functionality, such as preprocessing of the data, securing connectivity to ...

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