Siemens.mc.drives.acx.model.configuration Data.package Jun 2026

In essence, it is a foundational software library that TIA Portal and Startdrive rely on to understand, configure, and communicate with your drives. You will never directly open or edit this file. Instead, you interact with it indirectly whenever you use the engineering software to commission a drive.

Represents the underlying object model architecture used by SINAMICS Startdrive . model.configurationData.package

The Acx in the package name stands for the —the native language of SINAMICS drives. Understanding this explains why the Model.ConfigurationData package is so critical. Siemens.mc.drives.acx.model.configuration Data.package

: Likely stands for "Advanced Commissioning eXtension," a Siemens internal naming convention for drive integration modules.

to enable seamless "integrated engineering" where the PLC, HMI, and Drive are configured in a single project. The "Missing Package" Phenomenon In essence, it is a foundational software library

The long identifier reveals its function through its namespace structure. Siemens.MC.Drives.Acx.Model.ConfigurationData points to a core assembly within the SIMATIC software ecosystem:

Problem opening a project in TIA Portal – missing package files Represents the underlying object model architecture used by

Represents the Motion Control division and its specialized software libraries.

The file string (and its closely related variants like PackageContainer ) is a critical internal component of the Siemens Totally Integrated Automation (TIA) Portal ecosystem. It acts as a metadata container that defines parameters, hardware descriptions, and architectural logic for modern Siemens Motion Control (MC) drives —specifically those running on advanced communication eXchange (ACX) firmware frameworks.

The project you are trying to open was likely created with a specialized "Toolbox" or a specific version of that your current installation lacks. Without this package, TIA Portal cannot interpret the drive hardware objects in the project tree. How to Fix It

(e.g., V17 Update 12 or newer) are installed, as these often include the necessary PackageContainer Troubleshooting Missing Package Errors Verify Software Version