Fronius Converter USB (COM3) Driver

The Fronius Converter USB (COM3) driver helps Windows recognize the Fronius USB converter and provides a serial communication interface for compatible software. It is intended for users who need to connect compatible Fronius equipment to a PC or restore communication when the converter is not detected correctly.

Key Features

• USB-to-serial communication: Allows compatible applications to access connected equipment through a Windows COM port.
• Device recognition: Helps Windows identify the converter rather than leave it listed as an unknown device.
• COM-port configuration: Makes the assigned serial port available in Device Manager so you can match it to your application's connection settings. Although the device name includes COM3, Windows may assign a different port number.
• Support for older Windows systems: Listed operating systems include Windows 10, 8.1, 7, Vista, and XP. Check the individual package for the versions and system architectures it supports.

How to Install Fronius Converter USB (COM3) Driver

1. Check your Windows system. Confirm your Windows version and whether it is 32-bit or 64-bit. If comparing Windows 10/11 compatibility, note that Windows 11 is not included in the listed supported systems; verify support with Fronius before installing.
2. Choose the appropriate package. Before starting your Fronius Converter USB (COM3) driver download for Windows, review the package's compatibility information and source. If a free download is offered, make sure it is the correct driver rather than an unrelated installer.
3. Prepare the files. Extract the archive if necessary and read any included instructions. Follow the package guidance on when to connect the converter.
4. Install the driver. Run the supplied setup program, if available. For a manual installation, open Device Manager, locate the converter, select Update driver, and browse to the extracted driver folder.
5. Verify the connection. Connect the converter and check Device Manager for its assigned COM port and any warning symbols. Select that same port in your compatible Fronius application, then test communication.

Keep the driver updated when Fronius provides a compatible release that addresses your needs. Choose the latest version supported by your operating system and equipment, rather than assuming the newest package works on every PC. Before an update, record your current COM-port settings so you can restore the application's connection configuration if needed.