SMA SC 500HE-20 - Manual (Page 21)

SMA Solar Technology AG 3 Product Description
Operating Manual SCxxxHE-20-BE-BEN111210 21
3.2 Sunny Central Communication Controller
The SC-COM is the central communication interface of the inverter. The SC-COM establishes the
connection between the inverter and the plant operator.
Figure 5: SC-COM
The SC-COM collects all data from the connected devices. The SC-COM enables monitoring,
parameterization and remote diagnosis of the inverter via computer, as well as power regulation by
the grid operator.
These various tasks performed by the SC-COM can be organized in 2 separate networks:
• Monitoring network: for performing monitoring, parameterization and remote diagnosis.
• Regulation network: for transmitting the grid management specifications of the grid operator.
Since the regulation network is used exclusively for transmitting data from the grid operator, the
specifications will be available in the required time.
If the amount of data flowing through the monitoring network is low, the grid operator specifications
can also be transmitted via the monitoring network. In this case, there is no need for 2 networks.
The operator can access all data stored in the SC-COM via an Ethernet connection.
You can set the parameters of the inverter via the SC-COM.
The networks can be set up using copper cables or optical fibers.
3.3 Sunny Central String-Monitor Controller
Depending on which options are ordered, the Sunny Central may be equipped with a
Sunny Central String-Monitor Controller for string monitoring. This controller allows communication
between the Sunny String-Monitors and the Sunny Central.
PV plant communication type
The interfaces of the SC-COM are set by default to "COM3" and a 115 200 baud rate. Do
not modify these settings.
HE SUNNY CENTRAL
STRING MONITOR CONTROLLER