SMA SB 4200TL HC Multi-String - Manual (Page 53)

SMA Technologie AG The Communications Interface
Installation Guide SBTLHCMS-IEN080411 Page53
12 The Communications Interface
The communications interface is used to communicate with SMA communication devic-
es (e.g. Sunny Boy Control, Sunny WebBox) or a PC with appropriate software (e.g.
Sunny Data). Depending on the selected communications interface, up to 2500 invert-
ers can be interconnected. Detailed information on this topic can be found in the com-
munication device manual, the software, or on the Internet at
www.SMA.de .
Depending on the type of interface, there are two different ways to install the commu-
nications interfaces:
•
RS232, RS485, Radio Piggy-Back
(see section 12. 1 "Connection RS232, RS485, Radio Piggy-Back" (Page 54))
• Powerline
(see section 12. 2 "Powerline Connection" (Page 56))
The detailed wiring diagram for the individual communications interfaces can be found
in the communication device manual. This wiring diagram includes the following infor-
mation:
•
Details on the required cable type
• Which of the inverter's connections are used
• Whether jumpers need to be mounted, and if so, which jumpers
• Whether the PE needs to be connected to the cable shield
The next pages will describe the following:
•
The enclosure feed-throughs for the communications interface
• The permitted cable route in the Sunny Boy
• The location of the PE connector
• The location of the screw terminals for connection of communication wires
• The location of the jumper slots
• The location of the interface port
• The location of the interface port for the PLC power module and the powerline mo-
dem
Installation or replacement of the communications interface is only to be
carried out by a qualified electrician.