Communication With External Devices - SMA Sunny Island 2012 Technical Description

Sunny Island Electrical Connection

7.5.2 Communication With External Devices

You can connect SMA communication devices (e.g., Sunny Boy Control, Sunny WebBox) or a PC
with the appropriate software to a communication interface. A detailed wiring diagram can be
found in the communication device manual, the software, or on the Internet at www.SMA.de.
This wiring diagram includes:
• Details on the required cable type
• Which of the Sunny Island's connections are used
• Whether or not the communications cables must be terminated
• Whether the PE needs to be connected to the cable shield
You can incorporate an RS485 communication interface into the Sunny Island.
Information
Communication via Powerline/Powerline modem (NLM) is not possible in an island grid
system.
NOTICE!
Electrostatic discharges may damage the communications interface.
• When working on the Sunny Island and when handling the components observe all
ESD safety regulations.
• Eliminate static charge by touching the grounded metal casing.
• Only then should you begin any work.
56 SI2012_2224-TEN082311
SMA Solar Technology AG
Technical Description