SMA SC 100LV-560HE - Manual (Page 68)

Electrical Connection SMA Solar Technology AG
68 SC125_560HE-IEN083220 Installation Guide
5.2.12 Serial Interfaces
NET Interface
For communication with the Sunny Central Control for data transmission to a PC, modem or
Sunny WebBox, the NET interface has to be used.
RS485 Data cable
The communication between the Sunny Central Control and the Sunny String Monitors (integrated
string current monitoring) is conducted via a RS485 data line, on the COM1 port of the Sunny Central
Control. The RS485 data line of the string current monitoring of the Sunny String Monitor is connected
to the HUB components in the Sunny Central.
Connection of the RS485 data line in the Sunny Control 150
Position of the NET interface
The exact position of the NET interface varies according to the Sunny Central. With the
help of the equipment identifier and the provided circuit diagram, the exact position of the
NET interface can be determined.
Position of the HUB
The exact position of the HUB varies according to the Sunny Central. With the help of the
equipment identifier and the provided circuit diagram, the exact position of the HUB can
be determined.
A RS485 HUB and NET interface
L2 L3 L1
L2 L3 L1
N
N
L1 L2 L3
L1 L2 L3
PE
PE
L+ L-
L+ L-
A