DNP3 Protocol Taxonomy

SCADA and remote monitoring systems employ a communications protocol called DNP3. The Distributed Network Protocol is a popular open-standard protocol. As a result, any manufacturer can create DNP3 equipment that works with other DNP3 devices. Since its launch in 1993, the Distributed Network Protocol—also referred to as DNP3—has gained widespread popularity. This protocol was created to communicate the condition of essential infrastructure, enabling dependable remote control, making it an instantly deployable solution for monitoring distant locations. The groundbreaking work on the protocol is typically attributed to GE-Harris Canada (previously Westronic, Inc.). However, a wide range of firms are presently using this protocol in a number of industrial applications, including power utilities. Three tiers of the OSI seven-layer functions model make up DNP3. The application layer, data link layer, and transport layer are these layers. Additionally, DNP3 can be sent via a TCP/IP network or a serial bus link.