Communication; Connecting The Communication Cable - Goodwe HT Series User Manual

User Manual V1.1-2023-12-14

6.5 Communication

6.5.1 Connecting the Communication Cable

Make sure that the communication device is connected to the right COM port. Route the
communication cable far away from any interference source or power cable to prevent the
signal from being influenced.
RS485 networking scenario
...
RS485
...
Inverter
...
RS485
...
Inverter
...
RS485
...
Inverter
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.
If more than 2 inverters are connected and also connected to the data logger, at most 20
inverters are allowed on the daisy chain.
Connecting the RS485 Communication Cable
Communication
Type
RS485
Reserved
RS485
Inverter
RS485
Inverter
RS485
Inverter
COM Port Definition
Port
1: RS485 A
2: RS485 B
3: RS485 A
4: RS485 B
COM2
5: PE, shield
layer grounding
6: PE, shield
layer grounding
COM3 -
NOTICE
RS485
Inverter
RS485
Inverter
RS485
Inverter
Function Description
Used to connect the inverter to other inverters
or the RS485 port on the data logger.
You can refer to SCB3000 User Manual. Visit
https://en.goodwe.com/Ftp/EN/Downloads/
User%20Manual/GW_SCB3000_User%20
Manual-EN.pdf
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29
06 Electrical Connection
Internet
LAN
SCB3000
PC terminal
to get the user manual.
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