Siemens SIMATIC S7-200 CPU 226 Compact Unit, 6ES7216-2AD21-0XB0, is a CPU module for the S7-200 family that combines a compact controller with built-in I/O and serial communication options. Powered by 24 V DC, it provides 24 digital inputs and 16 digital outputs on the module, with 8 KB of program memory and 5 KB of data memory. The unit includes two PPI/Freeport ports for device communication within simple automation networks. This model integrates CPU, power, and digital I/O in a single compact unit, suitable for small to mid-size control tasks.
