SIMATIC S7-300, Digital Input SM 321 6ES7321-1FF10-0AA0
SIMATIC S7-300, digital input SM 321, potential isolation, 8 digital inputs, 120V/230V AC, 1 40-pin with single common root/channel
Introduction
SIMATIC S7-300, digital input SM 321, potential isolation, 8 digital inputs, 120V/230V AC, 1 40-pin with single common root/channel
