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node-red-contrib-knx-ultimate

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Control your KNX and KNX Secure intallation via Node-Red! A bunch of KNX nodes, with integrated Philips HUE control and ETS group address importer. Easy to use and highly configurable.

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# knxUltimateLoadControl Node – Tutorial Outline ## 1. Intro (0:00) - "Hi! In this tutorial we configure the `knxUltimateLoadControl` node to manage power shedding on the KNX bus." - "We’ll monitor total load, disconnect lower priority circuits, and restore them automatically when power drops." ## 2. Use Cases (0:20) - Prevent main breakers from tripping when EV chargers, ovens, and HVAC run simultaneously. - Sequence loads based on priority and automation rules." ## 3. Inputs & Outputs (0:40) - One input: receives power readings (typically from a KNX energy meter) in watts. - One output: emits status and log events for dashboards or notifications." ## 4. Core Settings (1:00) - **Gateway**: select the optional KNX config for ETS autocomplete. - **Topic / DPT**: define the GA that reports overall power consumption (e.g., DPT `14.xxx`). - **Watt Limit**: threshold in watts for shedding to start. - **Check Interval**: seconds between load checks. - **Restore Delay**: seconds to wait before reinserting a load after shedding." ## 5. Load Slots (1:45) - Up to five controllable loads, each with: - **GA** and **DPT** to toggle the load. - **Name** describing the device. - **Auto Restore** toggle (true = reconnect automatically when power recovers). - **Monitor GA/DPT** for feedback or metered values (optional)." ## 6. Operation Logic (2:15) - When measured power exceeds the limit, the node sheds loads in order (1→5) until consumption is below the limit. - Loads flagged with `autoRestore` are re-enabled after the restore delay if there’s available headroom. - Each load can have a monitoring GA to confirm success or track actual usage." ## 7. Configuration Tips (2:45) - Order loads by priority: first slot = lowest priority (shed first). - Match DPTs to your actuators (e.g., `1.001` for switches). - Use monitor GA to read actual consumption or device state before toggling." ## 8. Workflow Example (3:15) - Slot 1: EV charger (auto restore disabled, manual intervention). - Slot 2: Electric water heater (auto restore enabled). - Slot 3: Pool pump (auto restore enabled). - Use the output to log events and notify household when shedding occurs." ## 9. Best Practices (3:40) - Add hysteresis to the watt limit if your meter is noisy. - Coordinate with KNX scenes or schedules to pre-disable heavy loads during peak tariffs. - Document each GA for electricians and maintenance staff." ## 10. Wrap-Up & CTA (4:05) - "We configured load thresholds, mapped five priority circuits, and explained auto restore timing." - "Subscribe for more KNX energy management tips and share your load shedding strategies!"