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Whitepaper

IIoT Protocols to Watch

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IIoT Protocols to Watch

By Aron Semle

IoT is alphabet soup. IIoT, IoE, HTTP, REST, JSON, MQTT, OPC UA, DDS, and the list goes on. Conceptually, we’ve discussed IoT for a long time and understand the basic idea and technical feasibility. Now we’re moving forward, identifying use cases and building prototypes. So it’s about time to work on that alphabet.

A big challenge in IoT is interoperability. In a recent Nexus survey, 77% of respondents stated that interoperability was their biggest challenge in IoT. Connecting industrial devices to IT and IoT platforms is big business, and it’s where a lot of the abbreviations come from. There are many protocols to accomplish this: some that are proprietary and others that are open standards. All are jockeying to be the one and only IoT protocol, but it’s clear this will never be the case. These protocols will co-exist—each with their own strengths and weaknesses—and it’s our job to understand where and when to use them.

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