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32 inputs (DC 24 V) Digital Input Module for S7-300 - 700-321-1BL00 – Helmholz Sales online store for Helmholz parts in North America
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SIEMENS SIMATIC S7-300, CPU 312C Compact with MPI, 10 DI/6 DQ, 2 High-Speed Counters Power Supply 24 V DC 6ES7312-5BF04-0AB0 - AliExpress
6ES7312-5BF04-0AB0 | Siemens SIMATIC S7-300 Series PLC CPU for Use with SIMATIC S7-300 Series, Digital Output, 10 (Digital)-Input, Digital | RS
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Siemens SIMATIC S7-300, digital input SM 321, potential isolation, 8 digital inputs, 120V/230V AC, one 20-pin,SIMATIC
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SIEMENS SIMATIC S7-300 CPU 319-3 PN/DP, Central Processing Unit with 2 MB Work Memory, 1st Interface MPI/DP 6ES7318-3EL01-0AB0
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