Zelio Sr2 Usb01 Driver Windows 10 Download Extra Quality 2021 (2025)
The direct way to download the Zelio SR2 USB01 driver for Windows 10 is through the official Schneider Electric Support portal.
Depending on when your cable was manufactured, you may need one of two different drivers: 1. New Version: SR2USB01 H2.0 (Post-2017)
If your cable has "H2.0" printed on the white plastic connector, use the updated driver designed for better performance on Windows 10. Download:DriverSR2USB01_H2 (V1.0). Compatibility: Windows 7, 8.1, and 10. 2. Legacy Version: Original SR2USB01 (Pre-2017)
If you have an older cable without the H2.0 marking, you likely need the standard USB-to-serial driver. Download: Z2_USB-Driver-W7-64-bits_V1_0.
Note: While labeled for Windows 7, this version is often required for legacy hardware to function on Windows 10. Recommended Software
To ensure full compatibility, Schneider Electric recommends using Zelio Soft 2 V5.1 or later, which includes many of these drivers by default. Latest Version:ZelioSoft2 V5.4.2 (Released 2021). Quick Installation Tip If Windows 10 does not automatically recognize the cable: Open Device Manager. zelio sr2 usb01 driver windows 10 download 2021
Locate the unknown device (often under "Other Devices" or "Ports").
Right-click and select Update Driver > Browse my computer to point to the downloaded files.
Are you having trouble with a specific COM port error in Zelio Soft 2? Driver Installation Issue SR2USB01 | Schneider Electric USA
Here’s a step-by-step guide to finding and installing the Zelio SR2 USB01 driver on Windows 10 (focusing on the 2021 timeframe and compatibility).
Recommended version from 2021: Zelio Soft 2 (v5.4 or v5.5)
Download the full Zelio Soft 2 setup (e.g., ZelioSoft2_V5.5.exe)
Install Zelio Soft 2 – this automatically installs the USB driver for SR2 USB01.
⚠️ In 2021, Windows 10 might still flag the driver as unsigned. You’ll need to disable driver signature enforcement temporarily (see Section 5).
6. Common Windows 10 Errors and Fixes (2021 Troubleshooting Log)
| Error in Device Manager | Likely Cause | 2021 Fix |
| :--- | :--- | :--- |
| Code 10 (Device cannot start) | Windows 10 blocked the old Prolific chip. | Install legacy Prolific driver v3.3.2.105 (Section 4). |
| Code 43 (Device descriptor failed) | Corrupt driver or USB port power issue. | Try different USB port (USB 2.0, not USB 3.0). Unplug other USB devices. |
| "Unable to open COM port" in Zelio Soft 2 | Wrong COM port number (>16) or software mismatch. | Change COM port number to 1-16 in Device Manager > Advanced. |
| Driver is not digitally signed | Windows 10’s integrity check. | Disable driver signature enforcement (temporarily) or use the signed driver from Schneider (post-2020). | ✅ Correct way to get the driver (2021 & later)
Step 3: Configuring Zelio Soft 2
Once the driver is installed, you must tell the programming software which communication port to use.
Open Zelio Soft 2.
Navigate to the main menu and select Transfer > Communication Port.
Select the COM port number assigned to the cable (found in the Device Manager step).
Click OK.
Alternative Approach
If you're having trouble finding the driver through the Schneider Electric website, you can try:
Using a Driver Update Tool: Some third-party tools can scan your hardware and update drivers. However, use these with caution and only choose reputable tools to avoid malware.
Checking Windows Update: Sometimes, Windows Update might have the driver you're looking for, especially if it's a commonly used piece of hardware.
Contacting Schneider Electric Support: If you're unable to find what you need, contact Schneider Electric's customer support directly. They can provide you with the necessary drivers or guide you through the process.
Direct Driver Reference
The SR2USB01 uses a Silicon Labs CP210x series chip. In a pinch, you can use the generic Silicon Labs CP210x USB-to-UART Bridge driver (version 6.7 or later), which is fully compatible and often more up-to-date than Schneider’s bundled driver.
Silicon Labs official CP210x driver (Windows 10, signed):