The most recent updates for these products have focused on system stability and specialized hardware support.

Enhanced password protection and integrity checks.

WinAC RTX was a legendary product. It allowed you to run a PLC runtime on an industrial PC using a real-time extension for Windows. However, as Siemens moved its hardware and software architecture to the ecosystem, the old WinAC RTX (based on Step 7 Classic) became obsolete.

Open the Siemens Automation License Manager tool and transfer your floating or single license key from your USB drive or online account to the local C: drive. Integrating WinAC RTX with STEP 7 and TIA Portal

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Disable aggressive CPU throttling, C-States, and power-saving features in the PC’s BIOS to guarantee deterministic real-time execution. Log in with full Administrator privileges. Step 3: Run the Installer

| Source | Access Requirement | |--------|--------------------| | (SIOS) | Free registration | | Siemens Support Portal | Maintenance contract / logged-in user | | SIA (Software Installation Agent) | Optional – automates version checks | | Legacy DVDs / Archive | For older versions (e.g., V4.5) |

Since the product is no longer in active distribution, you cannot find a "new" version for standard download.

If you or your company owns the software licenses:

To install and run a new instance of WinAC RTX successfully, your PC station must meet strict hardware and software prerequisites. Hardware Prerequisites

Trial Versions: Siemens occasionally provides trial versions for testing, though these are becoming rarer as the product reaches end-of-life. Key Features of the Latest Versions

Do you already have a or an Order Number (MLFB) ?

Newer deployments utilize the Totally Integrated Automation (TIA) Portal. You add a "PC Station" to your project, insert the WinAC RTX software PLC into the virtual slot, and assign physical communication cards (like a CP 5611 or standard Intel PROFINET-enabled NIC) to the controller configuration.

To obtain the software, legitimate users with a valid license must directly request it from Siemens Technical Support, providing their article number. This process is in place to ensure that only licensed users can access and maintain their existing automation systems. While WinAC RTX remains a highly capable and stable Soft PLC, it's essential to plan for the future, with the S7-1500 Software Controller being the recommended path for new developments.

Windows 7 (Embedded or Professional) or Windows 10 IoT Enterprise, depending on the specific WinAC RTX Service Pack.

| You Search For... | Actually Download... | | :--- | :--- | | SIMATIC WinAC RTX (new) | SIMATIC S7-1500 Software Controller (CPU 1505S/1507S) | | WinAC RTX 2010 Setup | TIA Portal V18 + S7-1500 Software Controller Trial | | WinAC RTX for Windows 10 | Not available. Use S7-1500 Software Controller on Win10 IoT Enterprise. |