DNP3
Distributed Network Protocol 3 is designed for reliable SCADA communication over noisy, low-bandwidth links common in utility networks, with structured object addressing and unsolicited event reporting.
Type
Telecontrol Protocol (Utility SCADA)
Typical Latency
Sub-second for event-driven reporting over IP; higher over legacy serial/radio links.
Hardware Requirements
Serial (RS485) or TCP/IP (DNP3 over IP) links, RTUs and IEDs supporting DNP3 outstation profiles.
Security
IEC 62351 / Secure DNP3 adds authentication and encryption on top of the base protocol.
Typical Use Case
Electric utility substations, water/wastewater SCADA, oil & gas remote terminal units (RTUs).
Connection Parameters
- Default port
- TCP/UDP 20000 (DNP3 over IP)
- Data objects
- Binary/analog inputs & outputs, counters
- Reporting
- Unsolicited event reporting supported
- Media
- Serial RS485 or IP network
Need DNP3 integration for your plant?
Our engineers configure drivers, gateways and security for this protocol as part of every Factomation deployment.