SMA Solar Technology AG Commissioning
User Manual SWebBox-BEN111033 37
6.8.2 Connecting the Sunny WebBox to the RS485 Communication
Bus
This section describes how to connect the Sunny WebBox to the RS485 communication bus. It will be
assumed that the Sunny WebBox is located at the end of the RS485 communication bus.
1. Connect cables to the RS485 bus nodes as described in the bus node manual.
2. Remove 40 cm from the cable sleeve of the RS485
communication cable on the side of the Sunny
WebBox.
3. Remove shielding until flush with cable sleeve.
4. Strip approx. 6 mm of insulation from the ends of the conductors.
RS485 cabling and pin assignment in the system
See the RS485 cabling plan poster for the system cabling and pin assignment.
Connect the insulated conductors of the cable to the plug connector correctly
Note the color of the insulated conductors of the communication cable.
2 | D+ ________________________
5 | GND ________________________
7 | D- ________________________
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