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SIMATIC S7-300, Digital output SM 322, isolated, 8 DO, 24 V DC, 2A, 1x 20-pole |
| Supply voltage |
| Load voltage L+ |
| ● Rated value (DC) |
24 V |
| ● permissible range, lower limit (DC) |
20.4 V |
| ● permissible range, upper limit (DC) |
28.8 V |
| Input current |
| from load voltage L+ (without load), max. |
60 mA |
| from backplane bus 5 V DC, max. |
40 mA |
| Power loss |
| Power loss, typ. |
6.8 W |
| Digital outputs |
| Number of digital outputs |
8 |
| Short-circuit protection |
Yes; Electronic |
| ● Response threshold, typ. |
3 A |
| Limitation of inductive shutdown voltage to |
L+ (-48 V) |
| Controlling a digital input |
Yes |
| Switching capacity of the outputs |
| ● on lamp load, max. |
10 W |
| Load resistance range |
| ● lower limit |
12 |
| ● upper limit |
4 k |
| Output voltage |
| ● for signal "1", min. |
L+ (-0.8 V) |
| Output current |
| ● for signal "1" rated value |
2 A |
| ● for signal "1" permissible range for 0 to 40 °C, min. |
5 mA |
| ● for signal "1" permissible range for 0 to 40 °C, max. |
2.4 A |
| ● for signal "1" permissible range for 40 to 60 °C, min. |
5 mA |
| ● for signal "1" permissible range for 40 to 60 °C, max. |
2.4 A |
| ● for signal "1" minimum load current |
5 mA |
| ● for signal "0" residual current, max. |
0.5 mA |
| Output delay with resistive load |
| ● "0" to "1", max. |
100 µs |
| ● "1" to "0", max. |
500 µs |
| Parallel switching of two outputs |
| ● for uprating |
No |
| ● for redundant control of a load |
Yes |
| Switching frequency |
| ● with resistive load, max. |
100 Hz |
| ● with inductive load, max. |
0.5 Hz |
| ● with inductive load (acc. to IEC 60947-5-1, DC13), max. |
0.5 Hz |
| ● on lamp load, max. |
10 Hz |
| Total current of the outputs (per group) |
| horizontal installation |
| — up to 40 °C, max. |
4 A |
| — up to 60 °C, max. |
4 A |
| vertical installation |
| — up to 40 °C, max. |
4 A |
| Cable length |
| ● shielded, max. |
1 000 m |
| ● unshielded, max. |
600 m |
| Interrupts/diagnostics/status information |
| Alarms |
No |
| Diagnostics function |
No |
| Alarms |
| ● Diagnostic alarm |
No |
| Diagnoses |
| ● Wire-break |
No |
| ● Short-circuit |
No |
| ● Fuse blown |
No |
| ● missing load voltage |
No |
| Diagnostics indication LED |
| ● Rated load voltage PWR (green) |
No |
| ● Fuse OK FSG (green) |
No |
| ● Status indicator digital output (green) |
Yes; per channel |
| Potential separation |
| Potential separation digital outputs |
| ● between the channels |
Yes |
| ● between the channels, in groups of |
4 |
| ● between the channels and backplane bus |
Yes; Optocoupler |
| Isolation |
| Isolation tested with |
500 V DC |
| Connection method |
| required front connector |
20-pin |
| Dimensions |
| Width |
40 mm |
| Height |
125 mm |
| Depth |
120 mm |
| Weights |
| Weight, approx. |
190 g |
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