The SIMATIC S7-1200 system comes in five different models, CPU 1211C, CPU 1212C, CPU 1214C, 1215C and 1217C, that may each be expanded to exactly fit your machine requirements. Function board can be added inside the front of any CPU to easily expand the digital or analog I/Os without affecting the physical size of the controller.

SIMATIC S7-1200 CPU 1214C Series
The compact high-performance CPU
With 24 integrated inputs and outputs
Integrated Ethernet interface
Fast counter
Basic PID Controller
Integrated real-time clock
Alarm inputs
Removable terminals on all modules

1 signal board (SB) or 1 communication board (CB)
8 signal modules (SM)
Max. 3 communication modules (CM)