| SIMATIC S7-1200, Digital output SM 1222, 16 DO, 24 V DC, transistor 0.5 A |
Supply voltage |
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. | 140 mA |
Power loss |
Power loss, typ. | 2.5 W |
Digital outputs |
Number of digital outputs | 16 |
in groups of | 1 |
Short-circuit protection | No; to be provided externally |
Limitation of inductive shutdown voltage to | typ. (L+) -48 V |
Switching capacity of the outputs |
with resistive load, max. | 0.5 A |
on lamp load, max. | 5 W |
Output voltage |
Rated value (DC) | 24 V |
for signal "0", max. | 0.1 V; with 10 kOhm load |
for signal "1", min. | 20 V DC |
Output current |
for signal "1" rated value | 0.5 A |
for signal "0" residual current, max. | 10 µA |
Output delay with resistive load |
"0" to "1", max. | 50 µs |
"1" to "0", max. | 200 µs |
Total current of the outputs (per group) |
horizontal installation |
— up to 50 °C, max. | 8 A; Current per mass |
Relay outputs |
Switching capacity of contacts |
— with inductive load, max. | 0.5 A |
— on lamp load, max. | 5 W |
— with resistive load, max. | 0.5 A |
Cable length |
shielded, max. | 500 m |
unshielded, max. | 150 m |
Interrupts/diagnostics/status information |
Alarms |
Diagnostic alarm | Yes |
Diagnostics indication LED |
for status of the outputs | Yes |
Potential separation |
Potential separation digital outputs |
between the channels, in groups of | 1 |
between the channels and backplane bus | 500 V AC |
Degree and class of protection |
Degree of protection acc. to EN 60529 | |
IP20 | Yes |
Standards, approvals, certificates |
CE mark | Yes |
CSA approval | Yes |
UL approval | Yes |
cULus | Yes |
FM approval | Yes |
RCM (formerly C-TICK) | Yes |
Marine approval | Yes |
Ambient conditions |
Free fall |
Fall height, max. | 0.3 m; five times, in product package |
Ambient temperature during operation |
min. | -20 °C |
max. | 60 °C |
horizontal installation, min. | -20 °C |
horizontal installation, max. | 60 °C |
vertical installation, min. | -20 °C |
vertical installation, max. | 50 °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. | 220 g |
last modified: | 03/13/2019 |