Communication Connections - Goodwe HT Series User Manual

4.5 Communication Connections

4.5.1 RS485 communication
Apply to RS485 models only.
Connect the RS485 port of the inverter to the Data Logger. The total length of the connection cable is
less than 1000m.
Keep the communication cable away from power cables to prevent the communication from being
interrupted.
The RS485 wiring method is shown below.
Inverter 20
.....
.....
.....
If more than 2 inverters are connected and also connected to the data logger, at most 20 inverters are
allowed on the daisy chain.
RS485 communication connect procedure:
Step 1: Disassemble the communication terminal(in the accessory pack).
Inverter 2
RS485 RS485
RS485 RS485
RS485 RS485
Inverter 1 SCB3000
SCB3000
Solar Communication Box
RS485
RS485
RS485
Waterproof rubber ring
Nut
18
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