DNP3 Protocol

The DNP3 protocol is also a standards-based, open protocol, in this case managed by an international user group. The protocol has a rich set of functions and was designed to work well in a wide area network. The protocol uses an object-based application layer and supports multiple operating modes including: poll-response, polled report-by-exception, unsolicited response and peer-to-peer. DNP3 offers time synchronized and time-stamped events and has the ability to provide confirmation on both the data link and application layers.