TIA Portal Tutorial: Working with Libraries in TIA Portal

Libraries in TIA Portal are containers for reusable code components such as:

They allow you to standardize, share, and reuse these components across different projects or among engineering teams.

There are two types of libraries in TIA Portal:

Project Libraries
- Stored within the current project.
- Useful for organizing reusable elements internally in a single project.
- Cannot be accessed from outside the project.
- Good for smaller projects where sharing isn’t required.

Location in TIA Portal: Project View → Libraries → Project Library

Global Libraries
- Stored as standalone .al11 files, outside of any single project.
- Can be imported and reused in multiple projects.
- Allow for versioning, backup, and team sharing.
- Ideal for maintaining company-wide standards or frequently used blocks (e.g., motor control logic, diagnostics modules, etc.)

Location in TIA Portal: Project View → Libraries → Global Libraries → Open Library

Why Use Libraries?

Libraries help in achieving:

Reusability – No need to “reinvent the wheel” for every new project.
Standardization – Ensures that common logic behaves the same across systems.
Maintainability – Updating a block once can propagate improvements to all future uses.
Team Collaboration – Common logic can be shared easily across developers.
Version Control – Libraries can be versioned to ensure compatibility with specific project versions.

Practical Use Cases

A custom PID control FB saved in a global library can be reused across all projects with identical tuning logic
A standardized data structure (UDT) for motor configuration can be saved once and reused in every machine installation
Third-party libraries such as LGF (Library for General Functions) provide advanced tools like interpolation or ramp functions that can be integrated directly into your project.

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