
Modbus TCP
Fronius - Modbus TCP
Fronius
Monitors Fronius Symo and Primo inverters via Modbus TCP
Overview
This ModbusCloud template reads AC and DC electrical data plus lifetime energy production from Fronius Symo and Primo solar inverters over Modbus TCP. Fifteen read-only registers cover per-phase AC voltage, current, power, frequency, and MPPT 1 and 2 DC voltage, current, and temperature. It is the standard float-based SunSpec template for Fronius installations.
Key readings
- AC Voltage Phase 1 to 3
- AC Current Phase 1 to 3
- AC Power
- AC Frequency
- DC Voltage and Current (MPPT 1 and 2)
- Temperature MPPT 1 and 2







