22 GE INFORMATION D20E ETHERNET I/O MODULE INSTRUCTION MANUAL
CHAPTER 1: BEFORE YOU START
DNP3 server
DNP3, the Distributed Network Protocol, is a standards-based communications protocol
developed to achieve interoperability among systems in the electric utility and substation
automation. This robust, flexible non-proprietary protocol is based on existing open
standards to work within a variety of networks.
DNP3 in the D20E module offers flexibility and functionality which includes:
• Multiple data types (Data Objects and Variations).
• Multiple master stations are supported for D20E DNP3 server.
• Unsolicited data report is initiated from outstations to master stations.
• Data types (Objects) can be assigned priorities (Class) and be requested based on the
priority.
• Time-stamped events.
• Broadcast messages.
• Data link and application layer confirmation and configurable.
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