6ES7321-1EL00-0AA0 SM321, 32DI, AC120V
SIMATIC S7-300, DIGITAL INPUT SM 321, OPTICALLY ISOLATED, 32 DI, 120V AC, 1 X 40 PIN
Supply voltage |
Load voltage L1 |
● Rated value (AC) |
120 V |
Input current |
from backplane bus 5 V DC, max. |
16 mA |
Power loss |
Power loss, typ. |
4 W |
Digital inputs |
Number of digital inputs |
32 |
Input characteristic curve in accordance with IEC 61131, type 2 |
Yes |
Number of simultaneously controllable inputs |
horizontal installation |
— up to 40 °C, max. |
32 |
— up to 60 °C, max. |
24 |
vertical installation |
— up to 40 °C, max. |
32 |
Input voltage |
● Type of input voltage |
AC |
● Rated value (AC) |
120 V |
● for signal "0" |
0 to 20V |
● for signal "1" |
74 to 132V |
● Frequency range |
47 ... 63 Hz |
Input current |
● for signal "1", typ. |
21 mA |
Input delay (for rated value of input voltage) |
for standard inputs |
— parameterizable |
No |
— at "0" to "1", max. |
15 ms |
Cable length |
● shielded, max. |
1 000 m |
● unshielded, max. |
600 m |
Encoder |
Connectable encoders |
● 2-wire sensor |
Yes |
— permissible quiescent current (2-wire sensor), max. |
4 mA |
Isochronous mode |
Isochronous operation (application synchronized up to terminal) |
No |
Interrupts/diagnostics/status information |
Diagnostic functions |
No |
Alarms |
● Diagnostic alarm |
No |
● Hardware interrupt |
No |
Diagnostics indication LED |
● Group error SF (red) |
No |
● Status indicator digital input (green) |
Yes; per channel |
Potential separation |
Potential separation digital inputs |
● between the channels |
No |