Supported Devices
| Device Type | Variants | Modbus TCP (Ethernet) | RS485 | Curtailment |
|---|---|---|---|---|
| Hybrid inverter | Dysun Hybrid | ✅ | ✅ | ❌ |
| FlexAmp | FlexAmp One 3.6K, 5K, 8K, 10K, 12K | ❌ | ✅ |
Wiring
Dysun Hybrid
Modbus TCP
- Connect the inverter's LAN port to your local network.
- Default port: 502.
- The Modbus unit ID must be set between 1–247 (default 1).
RS485
Info
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 A | RS485_POS | RS485 A | TX+ |
| RS485-B | RS485 B | RS485_NEG | RS485 B | TX- |
| GND | RS GND | GND | Not available | G |
Serial settings:
| Parameter | Value |
|---|---|
| Baud rate | 9600 (default) or as configured in the inverter menu |
| Data bits | 8 |
| Parity | None |
| Stop bits | 1 |
FlexAmp
The FlexAmp series communicates exclusively over RS485.
Info
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 A | RS485_POS | RS485 A | TX+ |
| RS485-B | RS485 B | RS485_NEG | RS485 B | TX- |
| GND | RS GND | GND | Not available | G |
Serial settings:
| Parameter | Value |
|---|---|
| Baud rate | 9600 (default) |
| Data bits | 8 |
| Parity | None |
| Stop bits | 1 |
Configuration
Warning
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.
- Set the Modbus address (slave ID) between 1–247 in the device menu.
- Each device on the RS485 bus must have a unique address.
FlexAmp Setup
During device scanning or manual configuration, you will be prompted:
"What is included in the installation?"
| Option | When to select |
|---|---|
| Solar panels and battery (default) | Both PV and battery are installed |
| Only solar panels | No battery is present |
| Only battery | No PV is present |
Select the option that matches your installation. An incorrect selection will result in missing or incorrect measurements.
Control
Dysun Hybrid
The inverter supports battery control:
- Charge mode: Set charge current in amperes
- Discharge mode: Set discharge power as a percentage of nominal power
- When smart grid control is disabled, the inverter returns to autonomous operation
Caution
Caution
Experimental Control features for the Dysun Hybrid have not been validated on live hardware.
FlexAmp
The FlexAmp series supports PV curtailment — the controller can limit the maximum solar production power in real time.
- The active power limit is written as a percentage of nominal power.
- When smart grid control is disabled, the device reverts to its configured local settings (typically unrestricted output).
- Curtailment applies to the total production of all connected PV strings.
| Model | Rated power | Max curtailment resolution |
|---|---|---|
| FlexAmp One 3.6K | 3 600 W | 1 W |
| FlexAmp One 5K | 5 000 W | 1 W |
| FlexAmp One 8k | 8 000 W | 1 W |
| FlexAmp One 10k | 10 000 W | 1 W |
| FlexAmp One 12k | 12 000 W | 1 W |