Alternative Communication At Com1 Interface - SMA Sunny Island SI3300 Installation & Operating Instructions Manual

Sunny Island

3.7.4 Alternative Communication at COM1 Interface

Fig. 3.21 shows as an example a simple island grid plant with a Sunny Boy as the
photovoltaic feeder, Sunny Island, Sunny Boy Control Plus and communication PC.
A motor feeding the grid is not included here but could be easily integrated.
The RS485 interface (COM1, SYNC BUS) of the Sunny Island to the PC is available
for communication in a single-phase island grid. All parameters and measured val-
ues of the Sunny Island can be displayed in the well-known manner with the com-
munication software Sunny Data.
Sunny Island
COM 2/ 1200 Baud
COM 1/ 9600 Baud
RS485
Fig. 3.21: Data communication with serial interface
BWRI33-12:EE
Installation & Operating Instructions
Sunny Boy
RS485
Sunny Boy Control Plus
RS232
Laptop
GSM-Modem
- 49 -
PT100 PT100 Power
Iragg 1
ambiente PV-Module PV-plant
˚C ˚C
Connection Box
Data Storage
Power Water
consumer quantity
SMA Regelsysteme GmbH