6ES7321-1CH00-0AA0
SIMATIC S7-300, digital input SM 321, isolated, 16 DI, 24-48 V AC/DC with single-point grounding, 1x 40-pole
Siemens spare part — S7-300 product cancellation (PM410, 1 October 2025); available as a spare part until 2033.
Kategória produktu
Digitálne modulyVýrobca
SIEMENSProduktový rad
S7-300| General information | |
|---|---|
| Product function | |
| Isochronous mode | No |
| Supply voltage | |
| Load voltage L+ | |
| Rated value (DC) | 24 V |
| permissible range, lower limit (DC) | 24 V |
| permissible range, upper limit (DC) | 48 V |
| Load voltage L1 | |
| Rated value (AC) | 24 V |
| permissible range, lower limit (AC) | 24 V |
| permissible range, upper limit (AC) | 48 V |
| Input current | |
| from backplane bus 5 V DC, max. | 100 mA |
| Power loss | |
| Power loss, typ. | 1.5 W; at 24 V; 2,8 W at 48 V |
| Digital inputs | |
| Number of digital inputs | 16 |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Number of simultaneously controllable inputs | |
| horizontal installation | |
| up to 40 °C, max. | 16 |
| up to 60 °C, max. | 16 |
| vertical installation | |
| up to 40 °C, max. | 16 |
| Input voltage | |
| Type of input voltage | AC/DC |
| Rated value (DC) | 24 V; DC 24 or 48 V |
| Rated value (AC) | 24 V; 24 V AC or 48 V AC (0 ... 63 Hz) |
| for signal "0" | -5V AC to +5V AC |
| for signal "1" | 14V AC to 60V AC |
| Input current | |
| for signal "0", min. | -1 mA |
| for signal "0", max. (permissible quiescent current) | 1 mA |
| for signal "1", typ. | 2.7 mA |
| Input delay (for rated value of input voltage) | |
| for standard inputs | |
| parameterizable | No |
| at "0" to "1", min. | 16 ms |
| at "0" to "1", max. | 16 ms |
| at "1" to "0", max. | 16 ms |
| Cable length | |
| shielded, max. | 1 000 m |
| unshielded, max. | 600 m |
| Encoder | |
| Connectable encoders | |
| 2-wire sensor | Yes |
| permissible quiescent current (2-wire sensor), max. | 1 mA |
| Interrupts/diagnostics/status information | |
| Alarms | No |
| Diagnostics function | No |
| Alarms | |
| Diagnostic alarm | No |
| Hardware interrupt | No |
| Diagnostics indication LED | |
| Group error SF (red) | No |
| Status indicator digital input (green) | Yes |
| Potential separation | |
| Potential separation digital inputs | |
| between the channels | Yes |
| between the channels, in groups of | 1 |
| between the channels and backplane bus | Yes; Optocoupler |
| Isolation | |
| Isolation tested with | 1 500 V AC |
| Connection method | |
| required front connector | 40-pin |
| Dimensions | |
| Width | 40 mm |
| Height | 125 mm |
| Depth | 120 mm |
| Weights | |
| Weight, approx. | 260 g |
| Approvals / Certificates | |