The Siemens 6ES7138-4DB02-0AB0 is an electronic module designed for the SIMATIC ET 200S distributed I/O system. This compact 15 mm wide module enables seamless connection of absolute encoders with an SSI (Synchronous Serial Interface), supporting up to 25-bit resolution at 1 MHz. The 6ES7138-4DB02-0AB0 processes input signals synchronously and cyclically, making it well-suited for applications requiring high-precision position feedback and real-time data acquisition. The module integrates DI (digital input) and comparator value functions, allowing for versatile monitoring and control within automated production processes. Siemens ensures reliable operation and compatibility, providing a robust solution for complex industrial environments. Brand: Siemens (featured twice for clarity and specification) Compact 15 mm width optimizes installation in confined control cabinets Supports high-resolution absolute encoders, enhancing process accuracy 6ES7138-4DB02-0AB0 available from large stock for fast delivery Refurbished 6ES7138-4DB02-0AB0 modules include a standard 2-year warranty