Data Sheet
Data sheet 6ES7321-1BL00-0AA0
SIMATIC S7-300, Digital input SM 321, Isolated 32 DI, 24 V DC, 1x
40-pole
Supply voltage
Load voltage L+
● Rated value (DC)
24V
● permissible range, lower limit (DC)
20.4V
● permissible range, upper limit (DC)
28.8V
Input current
from backplane bus 5 V DC, max. 15mA
Power loss
Power loss, typ. 6.5W
Digital inputs
Number of digital inputs 32
Input characteristic curve in accordance with IEC
61131, type 1
Yes
Number of simultaneously controllable inputs
horizontal installation
— up to 40 °C, max.
32
— up to 60 °C, max.
16
vertical installation
6ES7321-1BL00-0AA0 Subject to change without notice
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09/13/2019 © Copyright Siemens