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SIMATIC S7-300, DIGITAL OUTPUT SM 322, OPTICALLY ISOLATED, 8 DO (RELAY), 1 X 20 PIN, 24V DC, 2A OR 230V AC, 2A |
| Supply voltage |
| Load voltage L+ |
| ● Rated value (DC) |
24 V |
| Input current |
| from load voltage L+ (without load), max. |
110 mA; Current consumption of relay |
| from load voltage L1 (without load), max. |
110 mA |
| from backplane bus 5 V DC, max. |
40 mA |
| Power losses |
| Power loss, typ. |
3.2 W |
| Digital outputs |
| Number of digital outputs |
8; Relays |
| Switching capacity of the outputs |
| ● Lamp load, max. |
50 W |
| Output current |
| ● for signal "1" rated value |
2 A |
| ● for signal "1" minimum load current |
5 mA |
| Switching frequency |
| ● with resistive load, max. |
2 Hz |
| ● with inductive load, max. |
0.5 Hz |
| ● on lamp load, max. |
2 Hz |
| ● mechanical, max. |
10 Hz |
| Relay outputs |
| ● Rated input voltage of relay coil L+ (DC) |
24 V; 110 mA |
| ● Number of operating cycles, max. |
300 000; 230 V AC: 100000; 120 V AC: 200000; 24 V DC: 300000 (at 2 A) |
| Switching capacity of contacts |
| — with inductive load, max. |
2 A; 2 A (230 V AC), 2 A (24 V DC) |
| — with resistive load, max. |
2 A |
| Cable length |
| ● Cable length, shielded, max. |
1 000 m |
| ● Cable length unshielded, max. |
600 m |
| Interrupts/diagnostics/status information |
| Alarms |
| ● Diagnostic alarm |
No |
| Diagnostic messages |
| ● Diagnostics |
No |
| ● 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 |
| Galvanic isolation |
| Galvanic isolation digital outputs |
| ● between the channels, in groups of |
2 |
| ● between the channels and the backplane bus |
Yes; Optocoupler |
| Isolation |
| Isolation checked with |
1500 V AC |
| Connection method |
| required front connector |
20-pin |
| Dimensions |
| Width |
40 mm |
| Height |
125 mm |
| Depth |
120 mm |
| Weights |
| Weight, approx. |
190 g |
| last modified: |
17.09.2014 |
