
Modbus TCP
SMA StpSe Battery
SMA
Overview
The SMA Sunny Tripower Smart Energy (STPSE) is a three-phase hybrid inverter with an integrated battery interface, designed for residential and small-commercial PV storage systems. This ModbusCloud template reads the complete battery dataset over Modbus TCP, including state of charge, DC voltage and current, instantaneous charge and discharge power, cumulative and lifetime energy counters, capacity, and current limits. Write registers let you send an active-power setpoint, select control mode, and issue a reactive-power setpoint. Having all battery metrics in one portal view makes SMA StpSe Battery straightforward to commission, trend, and alarm.
Use cases
- Monitor battery state of charge hourly to detect capacity fade across multiple charge cycles.
- Compare instantaneous charge and discharge power against seasonal PV yield patterns.
- Alert on battery operating status changes to catch fault conditions before they affect backup readiness.
- Track cumulative charge and discharge energy counters to calculate round-trip efficiency over time.







