The Siemens 6ES7216-2AF21-0XB0 is a SIMATIC S7-200 CPU 226 XM compact unit with a 24 VDC power supply, 24 digital inputs, 16 digital outputs, 16 KB of code memory and 10 KB of data memory, and two PPI/FREEPORT ports. This CPU is built for fixed I/O count applications in the S7-200 family — 24 inputs and 16 outputs cover medium-sized machine control without an expansion rack, and the 16 KB code space handles compact to mid-size logic. The dual PPI/FREEPORT ports permit simultaneous connection to an operator panel and a programming device, or a Modbus RTU network.
DC supply avoids AC inrush; suited for battery-backed or 24 V control panels. Memory split is fixed at 16 KB code and 10 KB data. Sourced to order against your RFQ. Confirm delivery lead time with your Siemens distribution channel; typical availability supports spot buys and schedule releases.