Modbus TCP
MyPv AcThor9s
MyPv
Overview
The MyPv AcThor9s is a three-phase PV power diverter that routes surplus solar energy into electrical heat sources such as immersion heaters and space heating elements, with linear power control from 0 to 9 kW across up to three outputs. This Modbus TCP template reads total active power, per-phase voltage and current, per-phase active power, sensor temperature, and device status. Together these registers let you track exactly how much solar surplus the AcThor9s is consuming, verify load balance across all three phases, and confirm the device is in normal operation rather than a fault state.
Use cases
- Monitor total active power in real time to verify the AcThor9s is diverting available PV surplus into the hot water load.
- Compare per-phase active power on L1, L2, and L3 to detect unbalanced load distribution across the three heating outputs.
- Track the temperature register over time to confirm the storage tank is reaching and maintaining target temperature on sunny days.
- Alert on status codes of 200 or above to catch power-stage error conditions before they cause extended heating outages.
