Siemens MachineTemplate Program Overview and Alternatives

What Was the Siemens MachineTemplate Program?

The Siemens MachineTemplate was a software framework designed to accelerate the development of machine control applications within the TIA Portal environment. It provided a pre-configured, modular structure that adhered to Siemens’ recommended programming practices, making it easier for engineers to create consistent, maintainable, and scalable automation solutions. The template included basic function blocks for common machine tasks such as mode management, alarm handling, and sequence control, allowing developers to focus on the unique aspects of their machines rather than reinventing the wheel.

This tool was particularly popular among system integrators and OEMs who needed to deliver projects quickly while maintaining high quality. By using a standardized template, teams could reduce engineering time, minimize errors, and ensure that different machines from the same manufacturer had a uniform control philosophy. The MachineTemplate was often used in conjunction with other Siemens tools like the Library of PLC Data Types (LPD) and the Technology Objects for motion control.

Key Features of the MachineTemplate

• Modular Architecture: The template was divided into distinct modules for different machine functions, such as manual operation, automatic sequence, and diagnostics. This modularity made it easy to add or remove features without affecting the entire program.
• Standardized Interfaces: Each module communicated through well-defined interfaces, promoting reusability and simplifying integration with other components like HMI screens and higher-level control systems.
• Built-in Error Handling: Comprehensive alarm and diagnostic functions were included, enabling quick identification and resolution of issues on the shop floor.
• Compatibility with TIA Portal: The template was fully integrated with Siemens’ TIA Portal engineering framework, supporting various PLC families such as S7-1200 and S7-1500.

Why Was the MachineTemplate Removed?

Siemens periodically updates its software portfolio to align with new technologies and customer needs. The MachineTemplate was likely discontinued as part of this evolution. While Siemens has not provided a detailed public explanation, it is common for such tools to be replaced by more advanced or integrated solutions. For instance, Siemens now emphasizes the use of the “Library of PLC Data Types” and the “Modular Application Creator” for building modular machine software. Additionally, the concept of “Standard Machine Projects” has been incorporated into newer offerings like the “SIMATIC Machine Simulator” and various technology packages.

Another possible reason is the shift towards more flexible, object-oriented programming approaches in industrial automation. The MachineTemplate, while effective, was based on a more traditional procedural structure. Modern frameworks often leverage the capabilities of the S7-1500 controller with its support for advanced data types and software units, making older templates less relevant.

Alternatives to the Siemens MachineTemplate

If you are looking for a replacement for the MachineTemplate, consider the following options that are currently supported by Siemens or the broader automation community:

How to Build Your Own Machine Control Template

If you cannot obtain the original MachineTemplate, developing a custom template is a viable path. Here is a step-by-step approach based on industry best practices:

1. Define the Machine States: Identify all operational modes (e.g., manual, automatic, maintenance, emergency stop) and create a state machine to manage transitions.
2. Design Modular Function Blocks: Break down the machine into functional units such as actuators, sensors, and sequences. Develop reusable function blocks with clear interfaces.
3. Implement Alarm Management: Create a centralized alarm system that collects, timestamps, and displays faults. Use the TIA Portal’s built-in alarm capabilities or custom logic.
4. Standardize HMI Integration: Design faceplates and screen templates that map to the control modules, ensuring a consistent user interface.
5. Document and Version Control: Maintain thorough documentation and use version control systems to track changes and facilitate collaboration.

Practical Example: Implementing a Basic Machine Template in TIA Portal

Consider a simple pick-and-place machine. A template could include the following blocks:

These blocks can be instantiated and interconnected in the main program, providing a solid foundation that can be extended for specific requirements. Using this approach, you can achieve similar benefits to the original MachineTemplate while tailoring the solution to your exact needs.

Best Practices for Machine Control Software Development

Whether you use a template or build from scratch, following these guidelines will improve the quality of your automation projects:

• Adopt a Consistent Naming Convention: Use clear, descriptive names for tags, blocks, and variables to enhance readability.
• Separate Logic from Hardware: Map I/O signals to internal variables to isolate the control logic from physical wiring changes.
• Use Version Control: Tools like Git can be integrated with TIA Portal to track changes and collaborate effectively.
• Simulate Before Deployment: Utilize PLCSIM or digital twin software to test the program thoroughly, reducing commissioning time.

Conclusion

The Siemens MachineTemplate program served as an excellent starting point for many machine builders, but its discontinuation does not mean the end of efficient engineering. By understanding the principles behind it and leveraging modern alternatives or custom development, you can still achieve high levels of standardization and productivity in your automation projects. Stay updated with Siemens’ latest offerings and continuously refine your own libraries to keep pace with evolving industry demands.