Siemens 6ES7223-1BL00-0XA0 Digital Input Module

Siemens 6ES7223-1BL00-0XA0 is an EM223 digital input/output module designed for SIMATIC S7-200 systems, providing 16 digital inputs and 16 digital outputs at 24 V DC to extend I/O capacity for S7-21x CPUs. The 16 DI channels and 16 DO channels support straightforward connection to standard 24 V sensors, switches, and actuators, enabling compact control schemes for small to mid-sized automation tasks. Built to integrate with the S7-200 expansion architecture, the EM223 consolidates input and output functionality on a single card, reducing wiring complexity and saving panel space in tight installations. Typical applications include machine control, packaging lines, conveyors, and process monitoring where reliable, fast 24 V signaling is required. The module is specifically intended for use with S7-21x CPUs, ensuring compatibility within the SIMATIC S7-200 family and maintaining consistent programming and addressing conventions for DI/DO modules.