The SIEMENS 6ES7136-6AA00-0CA1 is a SIMATIC DP ET 200SP electronic module offering four fail-safe analog inputs for 4–20 mA signals. Designed for safety-critical control systems, it provides hardware fault detection and safe analogue measurement suitable for applications requiring PL e (ISO 13849) and SIL 3 (IEC 61508) compliance. Use it to capture process sensor data with diagnostic coverage that helps maintain functional safety, simplify integration into ET 200SP distributed I/O racks, and support reliable monitoring and control in industrial automation environments.