Switchgear Modbus // VERSION: v3.42 Large // LICENSE: MIT / Open Source
● 100% LOCAL LAN EXECUTION (680 MB Embedded Image • 1 GB RAM)
Victron Venus OS Large & Local Modbus TCP / Node-RED
Protocols: Modbus TCP (Port 502) • VE.Direct • Node-RED • UK Regulatory Clearance: Official Victron Energy open-source embedded Linux stack; cleared for UK commercial switchgear & BMS integration.
Architectural Overview
Embedded Linux automation environment for Victron MultiPlus-II inverter/chargers, SmartSolar MPPTs, and SmartShunt 500A monitors—exposing real-time battery SoC, AC load, and generator auto-start relays via local Modbus TCP.
72-Hour Blackout Plant-Room Use Case
Automates load-shedding relays (dropping non-essential HVAC when LiFePO4 battery state-of-charge falls below 35%) and triggers 2-wire auto-start on the Hyundai 7.5kVA diesel generator.
Production Configuration & Deployment Snippet
# Victron Modbus TCP Register Poll (Unit ID 100 / VE.Bus) Register 843 (uint16): Battery State of Charge (%) -> Trigger GenStart < 25% Register 817 (int16): AC Output Active Power L1 (Watts) Register 266 (uint16): SmartShunt Consumed Amp-Hours (0.1 Ah)
Compatible Commercial Hardware Appliances
- [RL-PWR-026] Victron Energy MultiPlus-II 12/3000/120-32 230V Pure Sine Inverter/Charger — Price confirmed at launch
- [RL-PWR-025] Fogstar Drift 12V 300Ah Heated LiFePO4 Battery (3.84kWh) — Price confirmed at launch
- [RL-PWR-028] Victron SmartShunt 500A Bluetooth Battery Monitor & Lynx Busbar Kit — Price confirmed at launch