6ES7221-1BF32-0XB0 DIGITAL INPUT SM 1221, 8DI, 24V DC
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SIMATIC S7-1200, DIGITAL INPUT SM 1221, 8DI, 24V DC, SINK/SOURCE INPUT
| Supply voltage |
| Rated value (DC) |
|
| ● 24 V DC |
Yes |
| 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. |
105 mA |
| Digital inputs |
| ● from load voltage L+ (without load), max. |
4 mA; per channel |
| Output voltage |
| Power supply to the transmitters |
| ● present |
Yes |
| Power loss |
| Power loss, typ. |
1.5 W |
| Digital inputs |
| Number of digital inputs |
8 |
| ● in groups of |
2 |
| 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 |
