$ 143.75
The SB 1221 digital input/output signal board converts the level of the external digital signals from the process to the internal signal level of the S7-1200 Controller. The SB 1221 digital input signal boards enable connection of the controller to digital process signals.
| Article number | 6ES7221-3AD30-0XB0 | 6ES7221-3BD30-0XB0 |
| Signal Board SB 1221, 4 DI 5VDC 200KHz | Signal Board SB 1221, 4 DI 24VDC 200KHz | |
| General information | ||
| Product type designation | SB 1221, DI 4×5 V DC 200 kHz | SB 1221, DI 4×24 V DC 200 kHz |
| Input current | ||
| from backplane bus 5 V DC, typ. | 40 mA | 40 mA |
| Power loss | ||
| Power loss, typ. | 1 W | 1 W |
| Digital inputs | ||
| Number of digital inputs | 4; Current-sourcing | 4; Current-sourcing |
| ● in groups of | 4 | 4 |
| Input voltage | ||
| ● Type of input voltage | DC | DC |
| ● Rated value (DC) | 5 V | 24 V |
| ● for signal “0” | (L+ minus 1.0 V DC) … L+ (2.2 … 0 mA) | (L+ minus 5.0 V DC) … L+ (1.4 … 0 mA) |
| ● for signal “1” | 0 V … (L+ minus 2.0 V DC (20 … 5.1 mA)) | 0 V … (L+ minus 10 V DC (10 … 2.9 mA)) |
| Input current | ||
| ● for signal “0”, max. (permissible quiescent current) | 2.2 mA | 1.4 mA |
| ● for signal “1”, min. | 5.1 mA | 2.9 mA |
| ● for signal “1”, typ. | 15 mA | 7 mA |
| Input delay (for rated value of input voltage) | ||
| for standard inputs | ||
| — parameterizable | Yes; 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 μs; 0.05 / 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 ms | Yes; 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 μs; 0.05 / 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 ms |
| for interrupt inputs | ||
| — parameterizable | Yes | Yes |
| for technological functions | ||
| — parameterizable | Yes | Yes |
| Cable length | ||
| ● shielded, max. | 50 m; shielded, twisted pair | 50 m; shielded, twisted pair |
| Interrupts/diagnostics/status information | ||
| Diagnostics indication LED | ||
| ● for status of the inputs | Yes | Yes |
| Standards, approvals, certificates | ||
| CE mark | Yes | Yes |
| CSA approval | Yes | Yes |
| UL approval | Yes | Yes |
| cULus | Yes | Yes |
| FM approval | Yes | Yes |
| RCM (formerly C-TICK) | Yes | Yes |
| KC approval | Yes | Yes |
| Marine approval | Yes | Yes |
| Ambient conditions | ||
| Free fall | ||
| ● Fall height, max. | 0.3 m; five times, in product package | 0.3 m; five times, in product package |
| Ambient temperature during operation | ||
| ● min. | -20 °C | -20 °C |
| ● max. | 60 °C | 60 °C |
| ● horizontal installation, min. | -20 °C | -20 °C |
| ● horizontal installation, max. | 60 °C | 60 °C |
| ● vertical installation, min. | -20 °C | -20 °C |
| ● vertical installation, max. | 50 °C | 50 °C |
| Ambient temperature during storage/transportation | ||
| ● min. | -40 °C | -40 °C |
| ● max. | 70 °C | 70 °C |
| Air pressure acc. to IEC 60068-2-13 | ||
| ● Storage/transport, min. | 660 hPa | 660 hPa |
| ● Storage/transport, max. | 1 080 hPa | 1 080 hPa |
| Relative humidity | ||
| ● Operation at 25 ℃ without condensation, max. | 95 % | 95 % |
| Mechanics/material | ||
| Enclosure material (front) | ||
| ● Plastic | Yes | Yes |
| Dimensions | ||
| Width | 38 mm | 38 mm |
| Height | 62 mm | 62 mm |
| Depth | 21 mm | 21 mm |
| Weights | ||
| Weight, approx. | 35 g | 35 g |
