The Eastron SDM230 Modbus Wattmeter It is an energy meter that is used to accurately know the electrical consumption that we are asking of our installation. In this way, the meter communicates this to the grid-connected inverter using the Modbus protocol. Both devices must be connected so that the inverter has the correct readings of the power that we are requiring in our installation.
Thanks to the measurement of electrical consumption and the rapid communication of the Interface, the inverter is able to limit the power to what the home is consuming at that moment.
It is a device that allows us, if we so wish, to not pour the excess solar production that we are not using into the grid. It also serves to measure our energy requirements and, thanks to the fact that the inverter knows what we are capable of producing, we will have a comparison between the energy produced and the energy required.
