6ES7321-1FF01-0AA0
Siemens SIMATIC S7-300, digital input SM 321, isolated, 8 DI, 120 V/230 V AC, 1x 20-pole
Overview
Siemens SIMATIC S7-300 SM 321 is a digital input (DI) module used in Siemens S7-300 automation systems, designed for acquiring binary signals from sensors and switches. It’s a part of the modular and scalable S7-300 PLC system, commonly used in industrial automation for medium-sized applications.
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