Article number |
6ES7221-1BH30-0XB0
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6ES7221-1BH32-0XB0
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***Spare part*** SIMATIC S7-1200, Digital input SM 1221, 16 DI, 24 V DC, Sink/Source |
SIMATIC S7-1200, Digital input SM 1221, 16 DI, 24 V DC, Sink/Source |
General information |
Product type designation |
SM 1221, DI 16x24 V DC |
Supply voltage |
Rated value (DC) |
24 V |
permissible range, lower limit (DC) |
20.4 V |
permissible range, upper limit (DC) |
28.8 V |
Input current |
from backplane bus 5 V DC, max. |
130 mA |
Digital inputs |
● from load voltage L+ (without load), max. |
4 mA; per channel |
output voltage / header |
supply voltage of the transmitters / header |
● present |
Yes |
Power loss |
Power loss, typ. |
2.5 W |
Digital inputs |
Number of digital inputs |
16 |
● in groups of |
4 |
Input characteristic curve in accordance with IEC 61131, type 1 |
Yes |
Number of simultaneously controllable inputs |
all mounting positions |
— up to 40 °C, max. |
16 |
horizontal installation |
— up to 40 °C, max. |
16 |
— up to 50 °C, max. |
16 |
vertical installation |
— up to 40 °C, max. |
16 |
Input voltage |
● Rated value (DC) |
24 V |
● for signal "0" |
5 V DC at 1 mA |
● for signal "1" |
15 V DC at 2.5 mA |
Input current |
● for signal "0", max. (permissible quiescent current) |
1 mA |
● for signal "1", min. |
2.5 mA |
● for signal "1", typ. |
4 mA |
Input delay (for rated value of input voltage) |
for standard inputs |
— parameterizable |
Yes; 0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four |
for interrupt inputs |
— parameterizable |
Yes |
Cable length |
● shielded, max. |
500 m |
● unshielded, max. |
300 m |
Interrupts/diagnostics/status information |
Diagnostics function |
Yes |
|
Alarms |
● Diagnostic alarm |
Yes |
Diagnostics indication LED |
● for status of the inputs |
Yes |
● for maintenance |
Yes |
|
Potential separation |
Potential separation digital inputs |
● between the channels, in groups of |
4 |
Degree and class of protection |
IP degree of protection |
IP20 |
Standards, approvals, certificates |
CE mark |
Yes |
CSA approval |
|
Yes |
UL approval |
|
Yes |
cULus |
|
Yes |
FM approval |
Yes |
RCM (formerly C-TICK) |
Yes |
KC approval |
|
Yes |
Marine approval |
|
Yes |
Ambient conditions |
Free fall |
● Fall height, max. |
0.3 m; five times, in product package |
Ambient temperature during operation |
● min. |
0 °C |
-20 °C |
● max. |
55 °C |
60 °C |
● horizontal installation, min. |
0 °C |
|
● horizontal installation, max. |
55 °C |
|
● vertical installation, min. |
0 °C |
|
● vertical installation, max. |
45 °C |
|
● permissible temperature change |
5°C to 55°C, 3°C / minute |
Ambient temperature during storage/transportation |
● min. |
-40 °C |
● max. |
70 °C |
Air pressure acc. to IEC 60068-2-13 |
● Storage/transport, min. |
660 hPa |
● Storage/transport, max. |
1 080 hPa |
Relative humidity |
● Operation at 25 ℃ without condensation, max. |
95 % |
connection method |
required front connector |
Yes |
Mechanics/material |
Enclosure material (front) |
|
● Plastic |
Yes |
Dimensions |
Width |
45 mm |
Height |
100 mm |
Depth |
75 mm |
Weights |
Weight, approx. |
210 g |