SIMATIC S7-300, digital input SM 321, potential isolation 32 digital inputs, 24V DC, 1 40-pin
SIMATIC S7-300, digital input SM 321, potential isolation 32 digital inputs, 24V DC, 1 40-pin
SIMATIC S7-300, Digital Input SM 321 6ES7321-1BL00-4AA1
SIMATIC S7-300, digital input SM 321, potential isolation 32 digital inputs, 24V DC, 1 40-pin
Introduction
