| DIGITAL INPUT MODULES | |
| 6ES7321-1BH02-0AA0 | SIMATIC S7-300, DIGITAL INPUT SM 321, OPTICALLY ISOLATED, 16DI, 24 V DC, 1 X 20 PIN |
| 6ES7321-1BL00-0AA0 | SIMATIC S7-300, DIGITAL INPUT SM 321, OPTICALLY ISOLATED 32DI, 24 V DC, 1 X 40 PIN |
| 6ES7321-1FH00-0AA0 | SIMATIC S7-300, DIGITAL INPUT SM 321, OPTICALLY ISOLATED 16 DI, 120/230V AC, 1 X 20 PIN |
| 6ES7321-1EL00-0AA0 | SIMATIC S7-300, DIGITAL INPUT SM 321, OPTICALLY ISOLATED, 32 DI, 120V AC, 1 X 40 PIN |
| 6ES7321-1FF01-0AA0 | SIMATIC S7-300, DIGITAL INPUT SM 321, OPTICALLY ISOLATED, 8 DI, 120V/230V AC, 1 X 20 PIN |
| 6ES7321-7BH01-0AB0 | SIMATIC S7-300, DIGITAL INPUT SM 321, GALVANICALLY ISOLATED, 16 DI, DC 24V, 1 X 20 PIN, PROCESS INTERRUPT, DIAGNOSTICS, FIT FOR ISOCHRONE MODE |
