Siemens SM1221 Digital input, 16DI, 24VDC, sink/sourceProduct Overview SIMATIC S7 1200 Digital Input Module SM 1221 A high performance 16 channel digital input module designed for industrial automation applications. This versatile input module provides comprehensive 24V DC signal monitoring capabilities with flexible Sink Source configuration, making it ideal for expanding the digital input capabilities of S7 1200 controllers in demanding industrial environments. Key Features 16 Digital Inputs Provides
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Siemens SM1221 Digital input, 16DI, 24VDC, sink/source