- SIMATIC S7-1200
- Digital input SM 1221
- 16 DI, 24 V DC, Sink/Source
- SIMATIC S7-1200 Basic Controller
- Flexible thanks to wide variety of communication options
- Signal modules for adapting configuration
- Available for all SIMATIC S7-1200 models except CPU 1211C
- Includes digital and analog input, output, and hybrid modules
- Fail-safe versions also available
- Detailed expansion options
- Save space in the control cabinet
- Maximize hardware expenditure benefits