
Modbus TCP
SMA Data Manager (pv)
SMA
Overview
The SMA Data Manager (pv) is a system-level energy management gateway that aggregates PV generation data from multiple SMA inverters into a single Modbus TCP interface. This template reads two key system registers: current active power output across all line conductors (address 30775) and total cumulative feed-in energy (address 30513). Both values are 30000-series read-only registers served over Modbus TCP on port 502. Connecting via the ModbusCloud Gateway gives installers and asset managers a continuous, cloud-accessible view of site-level PV production without polling individual inverters.
Use cases
- Monitor real-time PV system output power to verify inverter performance against irradiance conditions.
- Track cumulative feed-in energy over time to produce monthly yield reports for building owners.
- Alert on a sustained drop in active power during daylight hours to detect inverter faults early.
- Compare daily energy totals across multiple sites in the ModbusCloud portal to identify underperforming installations.







