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

In the world of industrial automation and CNC machining, efficient management of drive configuration data is crucial for system reliability, repeatability, and scalable machine production. At the heart of Siemens’ advanced engineering framework lies a collection of software libraries and data structures designed to handle drive parameters, hardware topologies, and configuration packages. Among these, the component known as siemens.mc.drives.acx.model.configuration data.package container (and its sibling siemens.mc.drives.acx.model.bico.packagecontainer ) plays a pivotal role, serving as a core dependency for developing custom applications that interact with Siemens drives. This article provides a comprehensive, technical deep-dive into this technology—its underlying ACX data format, the namespace and class structure, its function in package-based engineering workflows, common troubleshooting scenarios, and best practices for developers.

: The error message usually specifies the version required (e.g., v2.0.0.0). In the world of industrial automation and CNC

For advanced users, manually registering the DLL using regsvr32 may be possible. The file is typically located in C:\Program Files (x86)\Siemens\SINAMICS Drives LIB\Bin\ or a similar path. However, note that the DLL may be a .NET assembly rather than a COM component, in which case registration differs. The file is typically located in C:\Program Files

For the series of machines, certain options (e.g., a fourth axis or a different spindle motor) may vary. The engineer uses the CMC package’s step tree and user-specified topology features to define a maximum configuration. The data.package container stores these variations as parameter sets associated with specific drive objects. typically with a .utz2 extension

In this mode, the CMC package uses a user-defined offline topology file, typically with a .utz2 extension, which describes the maximum machine configuration. This topology file defines not only the physical arrangement of components but also DO names, component numbers, article numbers, component types, and generalized drive data structures. When the package is executed, SINAMICS checks this offline topology against the currently available hardware and customizes the configuration accordingly, creating target topologies and DOs for the specified components.

If you are using or Libs No Engine to automate your engineering (generating 50 identical drive configurations), you will directly reference this container path in your C# or Python script to instantiate the drive type.