1. Product Overview
The DATOUBOSS Solar Plug-RWB1 is an acquisition module designed to facilitate data transmission between hybrid inverters (48V/24V) and monitoring platforms. It utilizes Wi-Fi and BLE (Bluetooth Low Energy) for data collection and monitoring from inverters, energy storage devices, and other compatible equipment.
Equipped with rich network protocols and an integrated RS232 data transmission interface, the module offers easy integration with traditional serial devices without the need for additional drivers. It supports four-color photovoltaic energy management systems and is ideal for the photovoltaic energy industry, allowing users to monitor energy data via a web page or a dedicated mobile application.
Key Features:
- Supports WiFi 802.11b/g/n wireless standards.
- Adopts RISC architecture SOC chip with 160MHz frequency, 276KB RAM, and 2MB Flash, based on FreeRTOS system.
- Supports BLE 5.0 for diagnostic, local Bluetooth debugging, and data collection functions.
- Enables RS232 to WiFi data transmission with a maximum serial port speed of 460800bps.
- Compatible with the Solar Of Things energy management platform (web page or APP) for energy data monitoring.
- Power supply: 5-12VDC.
2. Setup
2.1. Physical Installation
The Solar Plug-RWB1 module connects directly to your hybrid inverter via an RJ45 port. Ensure the inverter is powered off before installation.
The module features an RJ45 connector. Depending on your inverter model, you may need a specific wire sequence type. The module defaults to using RS232 level format. If your product requires RS485 or TTL electrical interfaces, please contact the manufacturer for details.
RJ45 Pin Definition (Sub Models):
| Sub Model Code | Interface Form | PIN1 | PIN2 | PIN3 | PIN4 | PIN5 | PIN6 | PIN7 | PIN8 |
|---|---|---|---|---|---|---|---|---|---|
| -01 | RS232 | RXD | TXD | VCC | NC | NC | NC | NC | GND |
| -02 | RS232 | TXD | RXD | VCC | NC | NC | NC | NC | GND |
| -03 | RS232 | TXD | RXD | NC | VCC | NC | NC | NC | GND |
| -04 | RS232 | RXD | TXD | NC | VCC | NC | NC | NC | GND |
| -50 | RS485 | GND | GND | RS485 B- | VCC | VCC | RS485 A+ | NC | NC |
| -51 | RS485 | RS485 A+ | RS485 B- | NC | VCC | NC | NC | NC | GND |
Pin Description:
| Signal Description | Signal Type | Description |
|---|---|---|
| VCC | P | 5~12VDC power supply input |
| GND | P | GND Ground |
| TXD | O | RS232 level serial port output |
| RXD- | I | RS232 level serial port input |
Description Key: I = Input; O = Output; P = Power supply; NC = No Connection
2.2. App Configuration (Wi-Fi)
To connect your module to Wi-Fi and add it to the monitoring platform, follow these steps using the 'Solar of Things' app:
- Download and open the 'Solar of Things' app on your smartphone.
- Review and agree to the Privacy Policy.
- On the login screen, tap 'Wi-Fi Configuration'.
- Grant necessary permissions (Camera/album, Positioning, Storage, Bluetooth) when prompted.
- The app will search for nearby devices. Select your DATOUBOSS module from the list (identified by its ID).
- Search for and select your local Wi-Fi router's SSID.
- Enter your Wi-Fi network password.
- Tap 'Setup' to initiate the connection.
- Wait for the 'Distribution in progress' message to complete. If it takes longer than 30 seconds, double-check your router password.
- Once 'Successful Distribution Network' appears, tap 'Return'.
2.3. App Configuration (Adding Device)
After successfully configuring Wi-Fi, you can add your device to your account:
- Log in to your registered 'Solar of Things' account.
- On the main screen, tap the '+' button in the top right corner to add a device.
- The app will scan for the configured device. Select your DATOUBOSS module.
- Fill in the required 'Device Information':
- Device Type: Select 'PV Inverter'.
- DTU ID: This should be pre-filled.
- Device Name: Enter a descriptive name for your inverter.
- Rated Power (kW): Enter the rated power of your inverter.
- Total Capacity (kWp): Enter the total capacity of your solar array.
- Fill in the 'Installation Information':
- Address: Select your location on the map.
- Time Zone: Select your local time zone.
- City/Region/Full Address: Provide detailed address information.
- Installation Time: Set the date of installation.
- Optionally, configure 'Revenue/per kWh' by selecting currency and unit price.
- Tap 'Finish' to complete the device addition.
3. Operating
3.1. Indicator Light Functions
The module features four LED indicator lights and a Reload reset button on its front face. These indicators provide visual feedback on the module's status:
| Pin | Description | Network Name | Signal Type | Note |
|---|---|---|---|---|
| PWR | Power indicator light | PWR | O | On: Power supply is normal Off: Abnormal power supply |
| COM | Serial port transmission indicator light | COM | O | Off: No data interaction Off for 0.3 seconds, on for 0.9 seconds: serial port outputs data Off for 0.3 seconds, on for 0.3 seconds: serial port receives data |
| NET | Network status indicator light | NET | O | Off for 0.3 seconds, on for 3 seconds: Connect to the router in STA mode Off for 0.3 seconds, on for 0.3 seconds: STA is not connected to the router |
| SRV | Server connection indicator light | SRV | O | On: Connected to server Off: Not connected to the server |
3.2. Reset Button
The 'Reload' button serves as a reset function. Press and hold this button for more than 4 seconds, then release it to restore the module to its factory default settings. This can be useful for troubleshooting connectivity issues or reconfiguring the module.
4. Maintenance
4.1. Internal Antenna Considerations
The module uses an internal PCB antenna. To ensure optimal performance and reliable data transmission, observe the following precautions:
- The antenna area should be kept away from metal objects.
- Avoid placing the module inside products that are entirely wrapped in metal, as this can significantly degrade signal strength.
4.2. Firmware Updates
Firmware updates for the Solar Plug-RWB1 module can be performed via the serial port or through an Over-The-Air (OTA) network upgrade. Consult the manufacturer's support resources or the 'Solar of Things' app for instructions on how to perform these updates.
5. Troubleshooting
- No Power: Check the PWR indicator light. If it's off, ensure the module is correctly plugged into the inverter's RJ45 port and the inverter is powered on. The module requires 5-12VDC.
- Wi-Fi Connection Issues: If the NET indicator light is not showing the 'connected to router' pattern (Off for 0.3s, on for 3s), verify your Wi-Fi router is powered on and within range. During app configuration, if the setup takes longer than 30 seconds, re-check the entered Wi-Fi password for accuracy.
- No Server Connection: If the SRV indicator light is off, ensure your Wi-Fi connection is stable and the module has internet access. Check the 'Solar of Things' app for any error messages or server status.
- Data Transmission Problems: If the COM indicator light shows no activity, check the connection to the inverter and ensure the inverter is transmitting data.
- Module Unresponsive/Incorrect Configuration: If the module is not behaving as expected or you need to reconfigure it, use the 'Reload' button to restore factory settings (press and hold for >4 seconds).
- App Permissions: Ensure the 'Solar of Things' app has all necessary permissions (Camera, Location, Storage, Bluetooth) on your smartphone for proper operation.
6. Specifications
6.1. Product Technical Parameters
| Classification | Parameters |
|---|---|
| System Information | |
| Processor/Main Frequency | RISC 160MHz |
| Flash | 2MB |
| RAM | 276KB |
| Operating System | FreeRTOS |
| Wi-Fi Interface | |
| Wireless Standards | 802.11 b/g/n |
| Frequency Range | 2.412GHz ~ 2.472GHz |
| Network Mode | STA/AP/STA+AP |
| Security Type | WEP/WPA-PSK/WPA2-PSK/WPA3-SAE |
| Encryption | WEP64/WEP128/TKIP/AES |
| Transmitting Power | 802.11b: +17dBm ± 1.5dBm (@11Mbps) 802.11g: +15dBm ± 1.5dBm (@54Mbps) 802.11n: +14dBm ± 1.5dBm (@HT20, MCS7) |
| Receiving Sensitivity | 802.11b: -96dBm (@1Mbps) 802.11b: -89dBm (@11Mbps) 802.11g: -91dBm (@6Mbps) 802.11g: -76dBm (@54Mbps) 802.11n: -91dBm (@MCS0) 802.11n: -73dBm (@MCS7) |
| Antenna Option | PCB Internal Antenna |
| BLE Interface | |
| Wireless Standards | BLE5.0 |
| Frequency Range | 2.402GHz ~ 2.480GHz |
| Serial Port | |
| Number of Port | 1 |
| Interface Standard | RS232 |
| Data Bit | 7, 8 |
| Stop Bit | 1, 2 |
| Check Bit | None, Even, Odd |
| Baud Rate | TTL: 1200 bps~460800 bps |
| Flow Control | No flow control |
| Software | |
| Collocation Method | APP |
| Firmware update | Serial port or OTA network upgrade |
| Basic Parameters | |
| Size | 66mm x 19.8mm x 10.8mm |
| Working Temperature | -40 ~ 85°C |
| Storage Environment | -45 ~ 105°C, 5 ~ 95% RH (non-condensing) |
| Input Voltage | 5~12VDC |
| Average Current | <30mA@9V |
| Average Power Consumption | 180mW |
6.2. Mechanical Dimensions
The physical dimensions of the Solar Plug-RWB1 module are approximately 66mm (length) x 19.8mm (width) x 10.8mm (height).
7. Warranty & Support
For warranty information, technical support, or further inquiries, please contact DATOUBOSS Official Store directly. You may also refer to the official user manual PDF for additional details and diagrams:
8. User Tips
- Inverter Compatibility: This WiFi module is confirmed to be compatible with DATOUBOSS 24V/3000W and 48V/6200W hybrid inverters. Some users have also reported success with SRNE inverters, suggesting a broader compatibility.
- Language Settings: The 'Solar of Things' app may offer multiple language options, including Spanish, for a more user-friendly experience. Check the app settings for language preferences.
- Remote Control: While primarily for monitoring, some users inquire about inverter control via the module. Check the app's features for any remote control capabilities.
- Wi-Fi Password: If you encounter issues connecting to Wi-Fi, ensure you are entering the correct password for your home router, not a password for the module itself. The module connects to your existing network.