The Siemens Logo! (Steuerung) is a compact logic controller designed for small automation tasks, providing a sweet spot between simple relays and full-sized PLCs. It’s ideal for applications where you need more intelligence than relays but less overhead than a full-size PLC. The Logo! is backed by Siemens AG, a well-established name in industrial automation, and has become a standard in workshops, plant rooms, and control cabinets worldwide.
The Logo! is approachable, modular, and can communicate with other devices, making it a popular choice among installers, makers, and small OEMs. It’s designed for small automation projects in areas like building technology, infrastructure, and simple machines, such as controlling lighting scenes, managing pump and fan sequences, and gate and door control.
The key benefits of the Siemens Logo! include:
* Compact and modular design, replacing multiple relays and timers with one device
* Graphical programming via Logo! Soft Comfort, making it easy to design logic visually
* Expandable I/O with dedicated modules, allowing you to start small and scale as needed
* Integrated functions for timers, counters, and basic control, making it easy to implement sequences and interlocks
* Networking and communication options, including Ethernet, enabling monitoring, remote access, and integration into larger automation environments
Users praise the Logo! for its rock-solid reliability, beginner-friendly interface, and great performance for one-off or custom projects. However, some criticize it for being limited for very complex systems and having a learning curve. Overall, the sentiment is very positive, with many users appreciating the Logo!’s dependability, flexibility, and ease of use.
In comparison to other compact controllers, the Siemens Logo! stands out for its maturity, wide global support, and integration into the broader Siemens automation ecosystem. It’s engineered as an industrial-grade device, making it a reliable choice for commercial and industrial installations.
The final verdict is that the Siemens Logo! is an excellent choice for small automation projects, providing a reliable, understandable, and flexible controller that keeps everyday machinery running smoothly. If you’re struggling with panels full of mechanical relays, hard-to-modify timer chains, or small projects bloated by overspec’d PLCs, the Logo! is worth considering. It’s a compact, modular PLC platform that scales with your needs, providing a visual programming environment that brings programmable logic within reach of non-programmers.