The DNP3 protocol is utilized in communication between various SCADA system components.
These system components include the SCADA master or HMI, the Remote Terminal Units, and Intelligent Electronic Devices.
Operators of SCADA systems can monitor the DNP3 protocol within their operations to increase system reliability. This will reduce customer roil by decreasing downtime.
DNP3 protocol was designed to avoid being distorted by legacy equipment, as well as EMI noise and low-grade transmission channels. While it adds network reliability, the DNP3 protocol does not make provisions for communications security.