| Article number |
6ES7422-1BL00-0AA0
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SIMATIC S7-400, digital output SM 422, isolated 32 DO; 24 V DC, 0.5 A |
| 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. |
30 mA |
| from backplane bus 5 V DC, max. |
200 mA |
| Power loss |
| Power loss, typ. |
4 W |
| Digital outputs |
| Number of digital outputs |
32 |
| Short-circuit protection |
Yes; Clocked electronically |
| ● Response threshold, typ. |
0.7 to 1.5 A |
| Limitation of inductive shutdown voltage to |
-27 V |
| Controlling a digital input |
Yes; possible |
| Switching capacity of the outputs |
| ● on lamp load, max. |
5 W |
| Load resistance range |
| ● lower limit |
48 Ω |
| ● upper limit |
4 kΩ |
| Output voltage |
| ● for signal "1", min. |
L+ (-0.3 V) |
| Output current |
| ● for signal "1" rated value |
0.5 A |
| ● for signal "1" permissible range, min. |
5 mA |
| ● for signal "1" permissible range, max. |
0.6 A |
| ● for signal "0" residual current, max. |
0.3 mA |
| Output delay with resistive load |
| ● "0" to "1", max. |
1 ms |
| ● "1" to "0", max. |
1 ms |
| Parallel switching of two outputs |
| ● for uprating |
Yes; possible (only outputs of the same group) |
| ● for redundant control of a load |
Yes; possible (only outputs of the same group) |
| 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. |
2 Hz; 2 Hz at 0.3 A; 0.5 Hz at 0.5 A |
| ● on lamp load, max. |
10 Hz |
| Total current of the outputs (per group) |
| all mounting positions |
| — up to 40 °C, max. |
4 A |
| — up to 60 °C, max. |
2 A; 8 adjacent outputs each |
| Cable length |
| ● shielded, max. |
1 000 m |
| ● unshielded, max. |
600 m |
| Interrupts/diagnostics/status information |
| Diagnostics function |
No |
| Potential separation |
| Potential separation digital outputs |
| ● between the channels |
No |
| ● between the channels, in groups of |
32 |
| ● between the channels and backplane bus |
Yes |
| Isolation |
| Isolation tested with |
500 V AC/707 V DC, type test |
| Dimensions |
| Width |
25 mm |
| Height |
290 mm |
| Depth |
210 mm |
| Weights |
| Weight, approx. |
600 g |