Siemens 6ES7216-2BD21-0XB0 is a CPU226 compact controller from the SIMATIC S7-200 family, built for small- to mid-size automation tasks. It delivers 40 I/O and about 13 KB of program and data memory, supporting straightforward control logic, timing, and data handling in compact machines. The unit provides four MPI connections for programming and field communication (PG, OP, X_PUT/X_GET), enabling easy integration with peripherals and HMIs. Typical applications include simple machine control, sequencing, and basic process control in benchtop or shop-floor automation setups.
