SIMATIC S7-1200 G2: SM 1221 Digital Input, 16DI; Input: 16x DI 24V DC sinking/source current

SIMATIC S7-1200 G2: SM 1221 Digital Input, 16DI; Input: 16x DI 24V DC sinking/source current

SKU: 6ES7221-1BH50-0XB0 Categories: ,

$221.36 – $245.95

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SM 1221 Digital Input — 16x DI 24V DC. Expansion module adding 16 digital inputs to any S7-1200 G2 CPU.

Technical Specifications

Digital Inputs 16x DI 24V DC, sinking/sourcing
Compatible CPUs S7-1200 G2 CPU 1212C / 1214C / 1215C / 1216 / 1217

Typical Applications

Used when the onboard CPU input points are insufficient — common in multi-sensor monitoring, limit-switch heavy machines, and expanded conveyor zones.

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