System Structure; System Requirements; System Topology - SMA SUNNY HOME MANAGER 2.0 Operating Manual

6 System Structure

6 System Structure
6.1

System Requirements

☐ SMA recommends a permanent internet connection (flat rate) and the use of a router that
supports the dynamic assignment of IP addresses (DHCP ‒ dynamic host configuration
protocol).
☐ All network components used must support the IGMP protocol, minimum version 3 (IGMPv3).
☐ If Ethernet network switches are used in the system, make sure that they do not perform IGMP
snooping and cause deactivation.
☐ Using media couplers such as powerline adaptors can cause transmission problems. These
can usually be activated for multicast operation via a firmware update from the manufacturer.
6.2

System Topology

The Sunny Home Manager must be installed behind the meter and the input fuse of the grid
operator and in front of the first distributor in the house. SMA recommends using the
Sunny Home Manager for measuring at the point of interconnection. As a bidirectional device, the
Sunny Home Manager measures both the grid-supplied power and the grid feed-in at the point of
interconnection.
26 HM-20-ennexOS-BE-en-10
SMA Solar Technology AG
Operating manual