Reusing proven modules in modular machine design can significantly reduce repeat engineering effort and shorten development cycles for new machine variants. This can be achieved with a scalable, flexible platform approach, because it can handle changing project requirements that often require adaptation. If the chosen product is not flexible enough, modules may not be reusable across different applications. Instead of designing every function from scratch, engineering teams can build on validated components and focus on application-specific adaptations. When the mechanical, electrical and pneumatic interfaces are clearly defined, different subsystems can be developed, tested and validated in parallel. This not only improves project transparency but also reduces integration risks when combining different machine sections. In complex automation projects, this approach helps maintain flexibility without sacrificing engineering consistency or system reliability.
Standardised modules and unified interfaces in modular automation can reduce the number of unique parts and variants required across machine platforms. This simplifies procurement, reduces supplier complexity and improves planning reliability in production environments. Using the same components across different machine concepts also makes inventory management easier and lowers the effort required for documentation and quality control. At the same time, modularity does not mean rigid standardisation. Instead, it creates a controlled core architecture that can be selectively adapted to meet specific application requirements without disrupting the overall system structure.
Pre-tested modules with clearly defined interfaces can streamline installation and commissioning processes in modular machine systems. Since functional units are validated before integration, assembly teams can focus on connecting and configuring modules rather than troubleshooting individual components on site. This reduces installation time and helps minimise interface-related errors between mechanical, electrical and pneumatic subsystems. In addition, modular structures make step-by-step commissioning easier, allowing individual machine sections to be tested independently before the full system is activated, thereby improving overall commissioning reliability.
A well-structured modular automation system improves serviceability by making functional units easier to access, inspect and replace. Instead of analysing tightly installed machine architectures, maintenance teams can work with clearly defined modules that make isolating faults easier. This reduces diagnostic complexity and can shorten service interventions, especially in systems with high availability requirements. Depending on the application, modular designs also allow more predictable maintenance planning, as individual units can be serviced or exchanged without requiring full system disassembly.
Machine requirements evolve over time because of changing customer specifications, new communication standards, or increased performance demands in pneumatic and electrical subsystems. Modular machine architecture can accommodate these changes by enabling targeted upgrades without requiring complete system redesigns. Standardised interfaces allow new functions or performance modules to be integrated more efficiently, reducing engineering effort during retrofits or line extensions. This is particularly relevant in scalable production environments where machines must be adapted to new product variants or process requirements.
This flexibility also extends to pneumatic and communication architectures. When systems are designed to operate with multiple communication standards and performance levels, variant complexity can be reduced while maintaining adaptability across different machine configurations. Digital functions integrated at system level can further improve process transparency and support data-driven optimisation, provided they are embedded within the modular structure rather than added as isolated components.
As machine concepts become more modular, the key question shifts from what can be built to what should be defined first.
The Key Considerations Guide for Valve Manifold and Remote I/O Selection helps structure that decision early. It brings together five connected considerations covering machine concept, communication needs, pneumatic performance, integrated functions and engineering approach.
Build a clear set of criteria for a confident valve terminal or remote I/O selection.
Get the guideThe valve terminal VTUX is one example of how a modular platform approach can work with different machine concepts. Depending on the configuration, it can be used in central or decentralised architectures and with different communication concepts. This encourages you to start by considering the requirements of your machine architecture before evaluating the appropriate product configuration.