Ethernet

The ubiquitous networking technology used for LANs (Local Area Networks). In OT, Ethernet has become common at higher levels of control systems (like connecting PLCs, HMIs, and SCADA servers), gradually replacing older serial links. Standard Ethernet (IEEE 802.3) wasn’t originally designed for real-time industrial needs, but newer standards and industrial protocols (Profinet, EtherNet/IP) have adapted it for factory use.

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