| General information |
| Product type designation |
SM 1223, DI 8x 24 V DC, DQ 8x 24 V DC 0.5A |
| 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. |
110 mA |
| Digital inputs |
| ● from load voltage L+ (without load), max. |
4.1 mA; per channel |
| Digital outputs |
| ● from load voltage L+, max. |
45 mA |
| Power loss |
| Power loss, typ. |
4 W |
| Digital inputs |
| Number of digital inputs |
8 |
| ● 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. |
8 |
| horizontal installation |
| — up to 40 °C, max. |
8 |
| — up to 50 °C, max. |
8 |
| vertical installation |
| — up to 40 °C, max. |
8 |
| Input voltage |
| ● Type of input voltage |
DC |
| ● Rated value (DC) |
24 V |
| ● for signal "0" |
5 V DC or 0.5 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. |
4.1 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 |
No |
| Cable length |
| ● shielded, max. |
500 m |
| ● unshielded, max. |
300 m |
| Digital outputs |
| Number of digital outputs |
8 |
| ● in groups of |
8 |
| Short-circuit protection |
No; to be provided externally |
| Limitation of inductive shutdown voltage to |
typ. (L+) -40 V, 1 W dissipation |
| 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 "1" permissible range, max. |
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. |
2 A; Current per mass |
| Cable length |
| ● shielded, max. |
500 m |
| ● unshielded, max. |
150 m |
| Interrupts/diagnostics/status information |
| Diagnostics function |
Yes |
| Alarms |
| ● Diagnostic alarm |
Yes |
| Diagnoses |
| ● Monitoring the supply voltage |
Yes |
| Diagnostics indication LED |
| ● DIAG LED |
Yes |
| ● for status of the inputs |
Yes |
| ● for status of the outputs |
Yes |
| Potential separation |
| Potential separation digital inputs |
| ● between the channels, in groups of |
4 |
| ● between the channels and backplane bus |
Yes; 707 V DC (type test) |
| Potential separation digital outputs |
| ● between the channels, in groups of |
8 |
| ● between the channels and backplane bus |
Yes; 707 V DC (type test) |
| Isolation |
| Isolation tested with |
707 V DC (type test) |
| Degree and class of protection |
| IP degree of protection |
IP20 |
| Standards, approvals, certificates |
| Siemens Eco Profile (SEP) |
Siemens EcoTech |
| CE mark |
Yes |
| CSA approval |
No |
| UL approval |
Yes |
| cULus |
Yes |
| FM approval |
No |
| RCM (formerly C-TICK) |
Yes |
| KC approval |
Yes |
| Marine approval |
No |
| Ecological footprint |
| ● environmental product declaration |
Yes; type 2 acc. to ISO 14021 |
| Global warming potential |
| — global warming potential, (total) [CO2 eq] |
40.3 kg |
| — global warming potential, (during production) [CO2 eq] |
7.79 kg |
| — global warming potential, (during operation) [CO2 eq] |
32.5 kg |
| — global warming potential, (after end of life cycle) [CO2 eq] |
-0.089 kg |
| Ambient conditions |
| Free fall |
| ● Fall height, max. |
0.3 m; five times, in product package |
| Ambient temperature during operation |
| ● horizontal installation, min. |
-20 °C |
| ● horizontal installation, max. |
60 °C; at max. voltages and max. specification |
| ● vertical installation, min. |
-20 °C |
| ● vertical installation, max. |
50 °C; at max. voltages and max. specification |
| ● 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 |
| ● Operation, min. |
540 hPa |
| ● Operation, max. |
1 140 hPa |
| ● Storage/transport, min. |
540 hPa |
| ● Storage/transport, max. |
1 140 hPa |
| Altitude during operation relating to sea level |
| ● Installation altitude, min. |
-1 000 m |
| ● Installation altitude, max. |
5 000 m; Restrictions for installation altitudes > 2 000 m, see manual |
| Relative humidity |
| ● Operation at 25 ℃ without condensation, max. |
95 % |
| Vibrations |
| ● Vibration resistance during operation acc. to IEC 60068-2-6 |
3.5 mm from 5 - 8.4 Hz, 1g from 8.4 - 150 Hz |
| ● Operation, tested according to IEC 60068-2-6 |
Yes |
| Shock testing |
| ● tested according to IEC 60068-2-27 |
Yes; IEC 68, Part 2-27 half-sine: strength of the shock 15 g (peak value), duration 11 ms |
| Pollutant concentrations |
| ● SO2 at RH < 60% without condensation |
S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60 % condensation-free |
| connection method |
| required front connector |
No |
| Mechanics/material |
| Enclosure material (front) |
|
| ● Plastic |
Yes |
| Dimensions |
| Width |
30 mm |
| Height |
125 mm |
| Depth |
100 mm |
| Weights |
| Weight, approx. |
170 g |
| Approvals / Certificates |