6ES7 421-7DH00-0AB0 | SIEMENS DIGITAL INPUT MODULE

SIMATIC S7-400, SM 421 DIGITAL INPUT MODULE, OPTIC. ISOLATED, 16 DI, 24 – 60V UC, ALARM, DIAGNOSTICSInput currentfrom backplane bus 5 V DC, max. 150 mAPower lossPower loss, typ. 8 W; 3.5 W (24 V DC); 6.5 W (48 V DC); 8.0 W (60 V DC)Digital inputsNumber of digital inputs 16Number of simultaneously controllable inputs● Number of simultaneously controllable inputs 16Input voltage● Type of input voltage AC/DC● Rated value (UC) 24 V; 24 to 60 V UC● for signal “0” -6 to +6 V DC/ 0 to 5 V AC● for signal “1” 15 to 72 V DC; -15 to -72 V DC; 15 to 60 V AC● Frequency range 47 to 63 Hz AC / DCInput current● for signal “1”, typ. 4 mA; 4 to 10 mA