Description
Siemens Digital Input Module – SM 1221C DI 16x24VDC
Series: SIMATIC S7-1200 I/O Modules (SM 1221C)
Channel Count: 16 digital inputs
Signal Type: 24 VDC (sink/source)
Resolution & Response: 24 V logic level, fast input response suitable for industrial automation
Applications: Expands S7-1200 PLC systems with additional digital inputs for sensors, switches, and push buttons. Ideal for compact machine control, packaging, conveyor, and process automation applications.
Catalog Numbers: 6ES7221-1BF32-0XB0 (standard version)
