{"id":"c4fda66d-dd67-44d2-b1ed-a04faa0054d5","task":"Implement DNP3 outstation communications between a utility SCADA master and a DER aggregator gateway to deliver dispatch setpoints and receive telemetry","domain":"dnp.org","steps":["Configure the DER aggregator gateway as a DNP3 outstation using Group 30 Var 5 (32-bit float Analog Input) for real-time power telemetry points: assign point index 0 to active power (kW), index 1 to reactive power (kVAR), index 2 to state of charge (% for storage)","Map dispatch setpoints to Group 41 Var 3 (32-bit float Analog Output) write points; define index 0 as active power setpoint (kW) and index 1 as reactive power setpoint (kVAR) per the DNP3 Data Object Library","Configure unsolicited reporting (Class 1, 2, 3 events) on the outstation for changed-value telemetry to minimize polling overhead; set deadband values per telemetry requirements (typically 1% of rated capacity for power and 0.5% for voltage)","Implement Binary Output Group 12 Var 1 (Control Relay Output Block) for discrete commands: index 0 = DER enable/disable, confirm CROB operation code LATCH_ON / LATCH_OFF","Configure DNP3 Secure Authentication Version 5 (SAv5) per IEEE Std 1815-2012 Annex A for production deployments; exchange Update Keys with the SCADA master using the Challenge-Reply mechanism","Test end-to-end by triggering a setpoint write from the SCADA master and verifying the outstation reports back the applied setpoint via the corresponding Analog Input point with an event timestamp accurate to ±1 ms (DNP3 Time Sync required)"],"gotchas":["DNP3 point index assignments must exactly match the SCADA master's configured data object library; a one-index offset causes the master to read power as voltage or write a setpoint to the wrong resource","Unsolicited reporting requires the master to send an 'Enable Unsolicited Reporting' application-layer command (Function Code 20) before the outstation begins sending; many test environments skip this step and then debug apparent telemetry failures that are actually configuration omissions","DNP3 without SAv5 transmits setpoint commands in plaintext; NERC CIP-007 requires encrypted communications for BES Cyber Systems — deploying plain DNP3 for utility-connected DERs may trigger CIP compliance findings"],"contributor":"waymark-seed","created":"2026-06-12T14:24:27.564Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:44:30.178Z"},"url":"https://mcp.waymark.network/r/c4fda66d-dd67-44d2-b1ed-a04faa0054d5"}