DevicesPV hybrid and battery inverters
Sunwoda
Supported Devices
| Device Type | Modbus TCP (Ethernet) | RS485 | Curtailment |
|---|---|---|---|
| OSP-100K-A | ✅ | ✅ | ❌ |
| OSP-200K-A | |||
| OSP-200K-A2 | |||
| OSP-300K-A3 | |||
| OSP-400K-A2 | |||
| OSP-400K-A4 | |||
| OSP-100K-B | |||
| OSP-200K-B | |||
| OSP-200K-B2 | |||
| OSP-100K-C-2 | |||
| OSP-100K-C-3 | |||
| OSP-200K-C | |||
| OSP-200K-C2 | |||
| OSP-100K-H-2 | |||
| OSP-100K-H-3 | |||
| OSP-200K-H | |||
| OSP-200K-H2 |
Caution
Important for batteries larger than 100 kW
If your battery power is rated for 100 kW or more, contact the Sunwoda support to enlargen the power limitation register.
By default, the power limitation is set to 100 kW. This can be updated by Sunwoda support on register 0x78f6. SmartgridOne Controller will then be able to control the power limitation.
Wiring
Ethernet
For correct ethernet wiring: Follow the the guidelines for ethernet wiring.
RS485
RS485 Wiring
- For correct RS485 wiring: Follow the guidelines for RS485 wiring.
- If the wiring shown in the table below is incorrect, please let us know.
- There is no general consensus in the industry about the usage of A and B for the RS485 polarity, so it may be counterintuitive and opposite of what you might expect for some devices.
| Device | SmartgridOne Controller model OM1 | SmartgridOne Controller model IG8 | RS485-USB converter | RS485-Ethernet converter |
|---|---|---|---|---|
| RS485 A | RS485_POS | RS485 A | TX+ | |
| RS485 B | RS485_NEG | RS485 B | TX- | |
| RS GND | GND | Not available | G |
Configuration
If you are connecting through TCP, be sure that the device is configured to communicate with port 502.
NOTE: RS485 Device Addresses
- You MUST give each device on the RS485 bus a unique address. Check the manual of the device on how to do this.
- Use lower addresses first (1, 2, ...) because the SmartgridOne Controller will find them faster!
- For each device, it is generally recommended to stick with the factory default baud rate, parity, and stop bits. The SmartgridOne Controller will scan on those first.