SMA SC 500HE-20 Installation - Manual (Page 18)

3 Product Description SMA Solar Technology AG
18 SCxxxHE-20-IA-IEN111210 Installation Manual
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 4: 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: takes care of the monitoring, parameterization and remote diagnosis
functions.
• Regulation network: here, the specifications issued by the distribution grid operator for grid
stability management are transmitted. Since the regulation network is used exclusively for
transmitting the data of the distribution grid operator, the specifications are made available in
the requisite time.
If there is only a low level of data flow in the monitoring network, 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 are realized on the basis of copper cables or optical fibers.
PV Plant Communication Type
The interface of the SC-COM is set by default to "COM 3". The default setting of the baud rate
for the following options is:
• Option 11/0 without hub: baud rate 115 200
• Options 11/1 and 11/2 with hub: baud rate 19 200
Do not modify these settings.
HE SUNNY CENTRAL
STRING MONITOR CONTROLLER