The Siemens 6ES7223-1BL22-0XA0 is a digital input/output expansion module from the SIMATIC S7-200 series. Designed exclusively for use with S7-22X CPUs, this compact module significantly enhances the capabilities of your automation system by providing 16 additional digital inputs and 16 digital relay outputs. The inputs operate at 24V DC and support both sink and source configurations, offering flexibility for various sensor connections. The 16 relay outputs are robust, capable of switching loads up to 2A, making them suitable for controlling a wide range of actuators, contactors, and solenoid valves. This module is an ideal solution for expanding control applications that require a higher count of I/O points in a space-saving design.