Code: 6ES7321-1BH02-0AA0
Product name: SM 321, OPTICALLY ISOLATED, 16DI, 24 V DC

Code: 6ES7321-1BH10-0AA0
Product name: SM 321, GALVANICALLY ISOLATED, 16DI, 24 V DC

Code: 6ES7321-1BH50-0AA0
Product name: SM 321, OPTICALLY ISOLATED 16DI, 24 V DC

Code: 6ES7321-1BL00-0AA0
Product name: SM 321, OPTICALLY ISOLATED 32DI, 24 V DC

Code: 6ES7321-1BP00-0AA0
Product name: SM321, OPTICALLY ISOLATED, 64 DI,DC 24V

Code: 6ES7321-1CH00-0AA0
Product name: SM 321, OPTICALLY ISOLATED, 16 DI, AC/DC 24 - 48V

Code: 6ES7321-1CH20-0AA0
Product name: SM 321, OPTICALLY ISOLATED, 16 DI, DC 48-125V

Code: 6ES7321-1EL00-0AA0
Product name: SM 321, OPTICALLY ISOLATED, 32 DI, 120V AC

Code: 6ES7321-1FF01-0AA0
Product name: SM 321, OPTICALLY ISOLATED, 8 DI, 120V/230V AC

Code: 6ES7321-1FF10-0AA0
Product name: SM 321, OPTICALLY ISOLATED, 8 DI, 120V/230V AC

Code: 6ES7321-1FH00-0AA0
Product name: SM 321, OPTICALLY ISOLATED 16 DI, 120/230V AC

Code: 6ES7321-7BH01-0AB0
Product name: SM 321, GALVANICALLY ISOLATED, 16 DI, DC 24V

Code: 6ES7321-7EH00-0AB0
Product name: SM 321 DIGITAL INPUT, 16 DI, DC 24/125V,

Code: 6ES7321-7RD00-0AB0
Product name: SM 321, OPTICALLY ISOLATED, 4 DI, 24V DC

Code: 6ES7321-7TH00-0AB0
Product name: SM 321 DIGITAL INPUT MODULE, 16 DI, 24V DC