6ES7212-1AF40-0XB0 - Siemens S7 1200F CPU

The Siemens 6ES7212-1AF40-0XB0 features 8 digital inputs (24 V DC), 6 digital outputs (24 V DC), and 2 analog inputs (0–10 V DC) for seamless integration of sensors, actuators, and process instruments. Its 150 KB program/data memory allows execution of complex automation and safety programs without performance compromise. Built under the Fail-safe CPUs family, it meets IEC 61508 safety standards, supporting SIL2/PL d certified applications for machine and process safety. The compact dimensions (10.20 × 10.60 × 8.50 cm) and light weight (0.312 kg) make it easy to install in space-limited control panels while maintaining robust industrial-grade durability.

As part of the PM300: Active Product Lifecycle, this CPU is backed by Siemens’ long-term availability, firmware updates, and technical support. Designed for use with TIA Portal, it enables unified engineering for both safety and standard tasks, reducing engineering time and simplifying commissioning. The DC/DC/DC configuration ensures stable performance even in variable power conditions, while onboard I/O reduces the need for external modules in smaller automation setups.

Engineers deploy the Siemens 6ES7212-1AF40-0XB0 in industries where safety and automation must coexist—such as packaging lines, conveyor systems, robotic work cells, and small process automation setups. Its fail-safe design ensures controlled shutdown during fault conditions, protecting both personnel and equipment. The analog inputs allow real-time monitoring of variables like temperature, pressure, or level, while the digital outputs can drive motors, valves, and alarms directly. This reduces hardware complexity and wiring effort, making it an attractive choice for cost-sensitive yet safety-compliant projects.

For OEMs, the integrated safety features mean fewer external components and simplified certification processes. Maintenance engineers appreciate its intuitive diagnostics in TIA Portal, enabling quick fault identification and resolution. Its compact form factor also suits mobile equipment, compact machinery, and retrofit projects where panel space is at a premium. System integrators value its ability to scale with other S7-1200 and higher-series Siemens PLCs, ensuring smooth migration paths for expanding automation networks.

Whether it’s automating a material handling system, synchronizing packaging machinery, or implementing safety interlocks in process control, the Siemens 6ES7212-1AF40-0XB0 delivers a balance of performance, safety, and reliability that supports Industry 4.0-ready installations. Backed by Siemens’ global service network and proven engineering tools, it stands as a trusted choice for building robust, future-proof control systems. For businesses seeking a compact yet capable safety PLC, the Siemens 6ES7212-1AF40-0XB0 offers a powerful solution from start to finish.