Components for the control of loads
At least one of the following compatible components must be present to control loads:
Switching device, e.g. a radio-controlled socket, a relay or a Modbus device
Device with EEBus or SEMP interface
Switching device
Devices that do not have a directly communicating data connection can be integrated into the energy management system as an intermediate switch via radio-controlled sockets, relays or Modbus devices. The Sunny Home Manager controls the switching device; the switching device can then switch the loads on and off via control signals from the Sunny Home Manager. For example, the Modbus device Moxa E1214 offers the possibility to control a heat pump via the relay output R0 (terminal 9 and 10).
At which times the Sunny Home Manager switches the switching device on or off automatically and without any further manual operation depends on the configuration of the load and the current load planning configured in the Sunny Portal: The Sunny Home Manager can measure the power consumption and length of the power consumption of individual loads connected to a switching device and transmits these measured values to Sunny Portal. There, you can control specific loads so that they are switched on if a lot of PV power is available, for example.
In addition, switching devices can be used purely for monitoring purposes, i.e. to measure the energy consumption of individual loads.
Device with EEBus or SEMP interface
To control a load that communicates directly, this load must have an EEBus or SEMP interface that is compatible with the Sunny Home Manager.
Links to additional information can be found at www.SMA‑Solar.com.

Under https://www.sma.de/produkte/sma-developer.html SMA offers you information on the protocol interface SEMP.