BESS Digital Twin — register-true from Modbus

A digital twin of a real battery-storage asset, reconstructed from the Modbus specifications of a PCS inverter and an LFP battery. Every metric carries its real Modbus register — driven with real day-ahead market prices and the Automix dispatch.

register-true PCS inverter LFP battery

State of charge (SoC)

Modbus 3003 · SOC · U16 · % · PCS

Charge / discharge power

Modbus 3006 · Charge/Discharge Power · I32 · kW · PCS

Cell voltage & DC bus

30003 Cell Voltage (BMS) + 3020 DC bus voltage (PCS)

Cell temperature (thermal)

Modbus 3001 · Battery cabin temperature · I16 · °C · PCS

Modbus register mirror

Every value shown maps 1:1 to a real register of the vendor spec — that is the transparency core: no demo value, but register-true.

RegisterNameVendorTypeAccessUnitCurrent

Model v1: dispatch = Automix DP on real day-ahead prices (DE-LU). Cell voltage from the LFP OCV curve, thermal from C-rate + liquid-cooling relaxation. Multi-market (intraday/IDA/balancing reserve) and live register binding to follow. Register sources: PCS inverter ESS Modbus port definitions, LFP battery Northbound Modbus TCP.

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