SMA Wireless-Set485-01 - Manual (Page 8)

The Wireless-Set485-01 SMA Solar Technology AG
8 WirelessSet485-IEN091511 Installation Guide
3 The Wireless-Set485-01
3.1 Applications
With the Wireless-Set485-01, you can extend the RS485 communication bus of your PV plant using
radio transmission. The transmission path should be seen as a cable substitute and establishes a point-
to-point connection. SMA distinguishes between the communication device side and the inverter side.
On the communication device side, there is the communication device (Sunny WebBox, Sunny Boy
Control) and possibly other communication bus devices. On the inverter side, all the other
communication bus devices can be connected. Communication bus devices include the inverter or the
Sunny SensorBox.
3.2 Functions
• Radio network topology:
– Point-to-point connection
– Connection from a further plant unit via separate transmission paths possible
(Complementary set Wireless-Set485-02)
– Connection of several transmission paths in series not permitted
• Max. range in open air 500 m
• Transmission frequency between 433.05 MHz and 434.79 MHz
• Power supply via RS485 Power Injector and plug-in power supply
Communication device side
Inverter side