Hands-On Industrial Internet of Things
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I-IoT data sources and data gathering

As discussed, PLC, DCS, SCADA, and Historian are the main data sources for the I-IoT data flow. The following diagram shows the I-IoT data flow schema, as mentioned in Chapter 3, Industrial Data Flow and Devices:

 I-IoT devices and protocols in the factory

Let's start to analyze each of these in terms of their capabilities, their strengths and weaknesses, and their connectivity and data acquisition options.

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