SIMATIC S7-300, Digital Input SM 321 6ES7321-1CH00-0AA0
*** Spare part *** SIMATIC S7-300 Digital inputs SM 321, potential isolated in groups of 16, 64 DE, 24V DC, 3ms, P/M read terminal block 6ES7392-1.N00-0AA0 and cable 6ES7392-4…0-0AA0.
Introduction
