REFU REFUsol 08K - Interface Port RS485

REFU Elektronik GmbH REFUsol 08K ... 23K 31
Fig. 16: Remove cable
4.14 Interface Port RS485
The RS485 interface supports the USS (Universal Serial Interface Protocol) and Modbus/Sunspec protocols,
which can be used for transmission of data, for example, to a data logger of a remote monitoring system.
Portal
Data Logger /
Park Control
Ethernet
RS485+ RS485- Ref. 4 43 32 2 4 43 32 4
Bus
termination
13 22 432
Inverter 1
Inverter 2 Inverter n
Fig. 17: Standard interface
When using this interface, please note that each device using the bus requires a unique address.
The bus termination is made by means of wire jumpers on RS485 OUT to the last bus user (inverter “n”).
Pin Signal
Pin 1
(only used for termination)
Pin 2
RS485 +
Pin 3
RS485 -
Pin 4
Reference