Data sheet 6ES7221-3BD30-0XB0 SIMATIC S7-1200, DIGITAL INPUT SB 1221, 4DI, 24VDC 200KHZ, SOURCE Input current from backplane bus 5 V DC, typ. 40mA Power loss Power loss, typ. 1W Digital inputs Number of digital inputs 4 Current-sourcing 4 in groups of Input voltage DC Type of input voltage 24V Rated value (DC) (L+ minus 5.0 V DC) ... L+ (1.4 ... 0 mA) for signal0 0 V ... (L+ minus 10 V DC (10 ... 2.9 mA)) for signal1 Input current 1.4mA for signal0 , max. (permissible quiescent current) 2.9mA for signal1 , min. 6ES7221-3BD30-0XB0 Subject to change without notice 12/04/2017 Copyright Siemens Page 1/37mA for signal1 , typ. Input delay (for rated value of input voltage) for standard inputs Yes 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 s 0.05 parameterizable / 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 ms for interrupt inputs Yes parameterizable for counter/technological functions Yes parameterizable Cable length 50m shielded, twisted pair shielded, max. Interrupts/diagnostics/status information Diagnostics indication LED Yes for status of the inputs Degree and class of protection Degree of protection acc. to EN 60529 Yes IP20 Ambient conditions Free fall 0.3m five times, in product package Fall height, max. Ambient temperature during operation -20C min. 60C max. -20C horizontal installation, min. 60C horizontal installation, max. -20C vertical installation, min. 50C vertical installation, max. Ambient temperature during storage/transportation -40C min. 70C max. Air pressure acc. to IEC 60068-2-13 660hPa Storage/transport, min. 1080hPa Storage/transport, max. Relative humidity 95% Operation at 25 without condensation, max. Mechanics/material Enclosure material (front) Yes Plastic Dimensions Width 38mm 6ES7221-3BD30-0XB0 Subject to change without notice 12/04/2017 Copyright Siemens Page 2/3