SMA SUNNY CENTRAL 250U, User Manual

Page: 17 / 48

SMA America, LLC
User Manual SCUS-BE-BUS111113 17
3.5 Elements for Sunny Central Operation
3.5.1 Sunny Display
There is a display on the front side of the Sunny Central. The
display shows the current values of the PV power system. See
Section 4 ”Operating the Sunny Display” (page 18).
3.6 Optional Accessories
The Sunny Central can be equipped with various communication and data acquisition devices.
Sunny WebBox
The Sunny WebBox collects the data from the Sunny Central continuously. To read the data, the
Sunny WebBox can be connected to a laptop or PC. The data can be processed with Sunny Portal,
for example.
Sunny SensorBox
The Sunny SensorBox and the sensors enable you to acquire environmental data of your PV power
system which are relevant for performance evaluation. For this purpose, the Sunny SensorBox is
equipped as standard with an integrated irradiation sensor and an external module temperature
sensor. The Sunny SensorBox delivers the sensor data via an RS485 interface to the SMA
communication devices (e.g. Sunny WebBox).
Power Metering (not for Sunny Central 500HE-US)
The Shark power meter and iLon device are a revenue grade metering system. They allow the output
generation of the inverter to be monitored and recorded. This information is sent via the internet to a
network that can process the data into a utility bill.