Data Sheet

Data sheet 6ES7321-7BH01-0AB0

SIMATIC S7-300, Digital input SM 321, isolated, 16 DI; 24 V DC, 1x

20-pole, process interrupt, diagnostics, suitable for isochronous

mode

Supply voltage

Load voltage L+

● Rated value (DC)

24V

● permissible range, lower limit (DC)

20.4V

● permissible range, upper limit (DC)

28.8V

Input current

from load voltage L+ (without load), max. 90mA

from backplane bus 5 V DC, max. 130mA

Power loss

Power loss, typ. 4W

Digital inputs

Number of digital inputs 16

Input characteristic curve in accordance with IEC

61131, type 2

Yes

Number of simultaneously controllable inputs

horizontal installation

6ES7321-7BH01-0AB0 Subject to change without notice

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Data sheet 6ES7321-7BH01-0AB0 SIMATIC S7-300, Digital input SM 321, isolated, 16 DI; 24 V DC, 1x 20-pole, process interrupt, diagnostics, suitable for isochronous mode Supply voltage Load voltage L+ ● Rated value (DC) 24 V ● permissible range, lower limit (DC) 20.4 V ● permissible range, upper limit (DC) 28.8 V Input current from load voltage L+ (without load), max. 90 mA from backplane bus 5 V DC, max. 130 mA Power loss Power loss, typ.
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— up to 40 °C, max. 16 — up to 60 °C, max. 16 vertical installation — up to 40 °C, max. 16 Input voltage ● Type of input voltage DC ● Rated value (DC) 24 V ● for signal "0" -30 to +5V ● for signal "1" 13 to 30V Input current ● for signal "1", typ. 7 mA Input delay (for rated value of input voltage) for standard inputs — parameterizable Yes; 0.1 / 0.5 / 3 / 15 / 20 ms Cable length ● shielded, max. 1 000 m ● unshielded, max.
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Isolation Isolation tested with 500 V DC Connection method required front connector 20-pin Dimensions Width 40 mm Height 125 mm Depth 120 mm Weights Weight, approx.