SMA Sunny Boy Control - Manual (Page 37)

Sunny Boy Control
SMA Technologie AG
User Manual SUNBC-14:NE0206 33
The following requirements must be met to establish an RS485 connection between
the Sunny Boy Control
and a PC.
•
The Sunny Boy Control has an RS485 Piggy-Back connected to its “PC
(COM2)” connector. (On the Sunny Boy Control Plus, the “AUX (COM3)”
connector can also be used for an RS485 connection.)
•
A COM port is available on the PC and an RS485-RS232 interface con-
verter is connected to it. SMA recommends an I-7520 interface converter
from IPC. SMA’s Sunny Boy Hotline does not support the use of interface
converters other than the recommended one.
•
A suitable cable (of the LiYCY type) is correctly terminated on both ends
and does not exceed a length of 1,200 m / 4,000 ft.
•
The jumpers are correctly set.
Fig. 3.14: RS485 connection between a PC and a Sunny Boy Control