MergenHub DNP3 — power and water automation
The event-driven protocol of power and water SCADA. MergenHub connects DNP3 RTUs and IEDs and verifies the result of every control command from the device response.
| Tag | Address | Value | Quality |
|---|---|---|---|
| Breaker1_Pos | BI 0 | 1 | |
| Bus_Voltage | AI 0 | 33.14 | |
| Line_Current | AI 2 | 121.6 | |
| Energy_Count | CNT 0 | 88213 | |
| Fault | BI 3 | 0 |
The MergenHub interface — DNP3 outstation Binary/Analog Input and Counter values; control with operate-STATUS verification.
What is DNP3?
DNP3 (IEEE 1815) is a SCADA protocol designed for geographically dispersed RTUs and IEDs, built around event and time-stamped reporting. Integrity polls provide consistency; unsolicited responses deliver event notification.
Where is it used?
Electricity distribution substations, water/wastewater telemetry networks and remote field stations. Preferred where time-stamped event logging and control safety are critical.
Feature coverage
Standard DNP3 control and data models are supported together with security and time services.
SBO + Direct Operate
Select-Before-Operate and Direct Operate control; CROB and analog output blocks. The STATUS field of the operate response is verified.
Secure Authentication
DNP3 Secure Authentication for authenticating critical control and configuration requests.
Data Sets
Data Sets for efficient definition and transfer of related point groups.
File Control
File Control services for file/record transfer on the device.
Redundancy
Primary/backup path configuration with automatic failover on interruption.
Time synchronization
Master time synchronization and correct ordering of time-stamped events (SOE).