GoodWe Modbus TCP/IP Communication Solution
VER 01, UPDATED ON SEP 24, 2020
GoodWe provides a communication protocol on storage inverters through MODBUS RTU or TCP/IP, which is a communication solution with third-party devices.
Compatibility Map:
| MODBUS RTU | MODBUS TCP/IP | |||
|---|---|---|---|---|
| Compatibility | Firmware | Compatibility | Firmware | |
| ES/EM/SBP | ✔ | ARM 01 or higher | X | NA |
| EH/BH/ET/BT | ✔ | ARM 01 or higher | ✔ | ARM 13 or higher |
Requirements of Using MODBUS TCP Protocol:
A LAN module is required for MODBUS TCP communication.
- Firmware of ARM chip shall be 13 or higher version.
- Use LAN module instead of Wi-Fi module. Note: As the default communication method is by Wi-Fi, LAN modules for MODBUS TCP communication shall be purchased separately from GoodWe and take over Wi-Fi module.
- Please contact GoodWe sales to apply for the document.
Wirings Diagrams for MODBUS TCP Communication
1. Direct connection to LAN module
Diagram showing a direct connection between an inverter (with LAN module attached) and a third-party device via a serial cable.
2. Connect in the Ethernet network with inverter
Diagram illustrating the connection of an inverter with a LAN module to a network via a router, and then to a third-party device.
Note:
- For network connection, please follow the LAN Module Installation Manual of GoodWe.
- This instruction could be updated without notice as the solution could be modified.