For the complete documentation index, see llms.txt. This page is also available as Markdown.
Device Manager
Configure, monitor and update a firmware v2 dongle over USB.
The Device Manager is the configuration and control interface for firmware v2. It communicates directly with the dongle through USB. Configuration data remains local between the browser and the connected device.
Firmware v2 Device Manager showing device status, the Modbus monitor and an available firmware update.
Use a Chromium-based browser such as Google Chrome or Microsoft Edge and connect the dongle with a USB data cable.
Connect
Connect the dongle to the computer.
Open the Device Manager.
Select Connect.
Choose the P1 Modbus Dongle from the browser dialog.
The overview shows the hardware type, installed firmware version, connection state and live P1 status.
Device control
The Device Manager is used to:
View device, firmware and hardware information
Configure the active Modbus mapping and serial communication
Select the smart meter source on compatible hardware
Monitor recent Modbus requests
Reboot the dongle
Check for and install firmware updates
Copy diagnostic system information for support
Configuration
Depending on the connected hardware, the following settings are available:
Smart meter source: SMR (P1) or HAN
Modbus mapping
Modbus device ID
Baud rate
Serial format
RS485 termination
Modbus monitor
RGB LED brightness, on hardware variants with an RGB status LED
Changed rows are marked in the interface. Select Save to store the changed values on the dongle.
The mapping, device ID, baud rate and serial format are independent settings. Selecting another mapping changes the exposed register model only; it does not automatically change the communication settings.
LED indicators
The Device Manager can change the RGB LED brightness on hardware variants with an RGB status LED. See LED indicators for the meaning of the power, P1 output and status LEDs per hardware variant.
Modbus monitor
The monitor displays the 30 most recent Modbus RTU requests received by the dongle, including device ID, function code, address, word count and result. It can be enabled in Configuration and is intended for commissioning and troubleshooting.
Firmware update
When a newer stable firmware version is available, the Device Manager displays an update notification. The existing USB connection is handed to the firmware updater, so the dongle does not need to be selected a second time.
The update does not erase the stored user configuration. After a successful update, the Device Manager reconnects automatically.
