DNP3 Implementation Levels Explained: L1 to L4
The Distributed Network Protocol (DNP3) is engineered to support a broad spectrum of devices in SCADA and automation systems — from simple field instruments and relays to sophisticated substation controllers and data concentrators. To deliver this flexibility without sacrificing interoperability, IEEE Std 1815-2012 defines four implementation levels (L1 through L4). Each level specifies a precise subset of required… Read More »
