
Modbus TCP
SAJ H2 Series Hybrid Solar Inverter (battery)
SAJ
Overview
The SAJ H2 Series is a hybrid solar inverter for residential and small-commercial on-grid and off-grid PV systems with battery storage. This ModbusCloud template connects to the H2 Series Hybrid Solar Inverter and the Ampere.StoragePro variant over Modbus TCP, reading instantaneous power, cumulative energy, and battery state of charge. Six writable battery-mode registers allow switching the inverter between operating modes such as self-consumption, time-of-use, and passive control in real time. Connecting this template to the ModbusCloud Gateway gives installers a single view of energy flow and mode status across all sites.
Use cases
- Monitor battery state of charge continuously to detect degradation trends across multiple installations.
- Track cumulative energy to verify yield figures match commissioning estimates each month.
- Alert on unexpected drops in instantaneous power during daylight hours to spot PV string faults early.






