
Modbus TCP
Stiebel Eltron Heating & Cooling
Stiebel Eltron
Controls Stiebel Eltron heat pumps via Modbus TCP through the ISG Web gateway.
Overview
This template connects Stiebel Eltron heat pumps (WPM, WPL, LPZ series) to ModbusCloud via Modbus TCP through the ISG Web gateway. It reads temperatures, operating modes, and fault states, and allows control of room and hot water temperature setpoints.
Key readings
- Outside temperature
- Supply flow temperature HC1/HC2
- Buffer temperature (actual/target)
- Hot water storage temperature
- Heatpump error and fault number
- Heatpump operating mode








