Siemens 6AG1321-1FF10-7AA0 Digital Input Module — Legacy Replacement. Digital inputs: 8 DI; Compatible equipment: 6ES7321-1FF10-0AA0; Ambient temperature range: -25…+70 °C.
***spare part*** SIPLUS S7-300 SM321 8 DI / 120/230 V AC based on 6ES7321-1FF10-0AA0 with conformal coating, -25…+70 °C, digital input isolated, 8 DI, 120 V/230 V AC, 1x 40-pole, with single rooting/channel