Simatic Pc Adapter Usb A2 Driver Windows Xp [updated] May 2026

The Simatic PC Adapter USB A2 Go to product viewer dialog for this item.

Simatic PC Adapter USB A2 Driver for Windows XP

Abstract

This paper reviews the Siemens Simatic PC Adapter USB A2 driver compatibility with Microsoft Windows XP. It covers device overview, driver architecture, installation procedure, troubleshooting, legacy system considerations, and security implications. The goal is to provide a concise, practical reference for engineers maintaining legacy industrial automation systems that use the USB A2 adapter under Windows XP. Simatic Pc Adapter Usb A2 Driver Windows Xp

) is an essential tool for connecting a PC or laptop to SIMATIC S7 automation systems via PROFIBUS or MPI. For users still operating on Windows XP, this adapter remains a highly compatible and reliable choice for legacy system maintenance. Performance & Compatibility PC Adapter USB A2 - Siemens Industry Online Support The Simatic PC Adapter USB A2 Go to

5. Step-by-Step Installation for Windows XP (32-bit)

  1. Download driver package (e.g., PC_Adapter_USB_A2_Driver_V2_0.zip from Siemens Industry Online Support – requires login).
  2. Do not plug in adapter yet.
  3. Run setup.exe as Administrator.
  4. Plug in adapter when installer prompts (usually after USB driver stub loads).
  5. Check Device Manager → Ports (COM & LPT) → “Siemens PC Adapter USB A2 (COMx)”.
  6. Open Set PG/PC Interface (from STEP 7 or via Control Panel).
  7. Select PC Adapter (USB A2) → Properties → set Baud rate: 187.5 kbps (MPI) or 1.5 Mbps (PROFIBUS).
  8. Test via Diagnostics → “Read” → should return connected partner PLC.

While Windows XP is long out of support, many industrial plants still run it for legacy PLC programming (e.g., STEP 7 V5.5). Here’s a concise, useful guide: Download driver package (e

Phase 2: Manual Driver Installation (The "INF" Method)

  1. Download the Driver Package: Extract the official Siemens zip file (e.g., PC_Adapter_USB_A2_V2.0.zip) to a folder on your desktop called Siemens_USB_Driver.
  2. Plug in the Adapter: Connect the USB A2 to your laptop's USB port. Do not connect it to the PLC yet.
  3. Found New Hardware Wizard: This popup will appear. Do not let Windows search automatically.
  4. Select "No, not this time" (if asked to connect to Windows Update).
  5. Select "Install from a list or specific location (Advanced)".
  6. Click "Next".
  7. Check "Include this location in the search:".
  8. Click "Browse" and navigate to C:\Siemens_USB_Driver (or your STEP 7 path: C:\Program Files\Siemens\Step7\S7BIN).
  9. Click "OK" and then "Next".
  10. Completion: Windows XP should now report "Found New Hardware: SIMATIC PC Adapter USB A2".

Local Path: On systems where STEP 7 is already installed, drivers may be located at C:\Program Files\Siemens\Common\S7SDD. Troubleshooting Tips