SIMATIC S7-1200 Controllers

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6ES7221-1BF32-0XB0 SIMATIC S7-1200, Digital input SM 1221, 8 DI, 24 V DC, Sink/Source
6ES7221-1BH32-0XB0 SIMATIC S7-1200, Digital input SM 1221, 16 DI, 24 V DC, Sink/Source
6ES7221-3AD30-0XB0 SIMATIC S7-1200, Digital input SB 1221, 4 DI, 5V DC 200kHz, Sourcing input
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