SIEMENS
SIMATIC S7-1200 SM 1221 Digital Input module designed for high-efficiency automation. It features 8 digital inputs at 24 V DC with versatile Sink/Source wiring options, providing a compact and reliable expansion for your PLC system.
The Siemens 6ES7221-1BF32-0XB0 is a SIMATIC S7-1200 SM 1221 Digital Input Module designed for reliable and efficient industrial automation applications. This module features 8 digital inputs operating at 24 V DC, supporting both sink and source wiring configurations.
Engineered to seamlessly integrate with the Siemens S7-1200 PLC system, this digital input module ensures precise signal detection, stable performance, and easy system expansion for automation environments.
Flexible Integration: Supports both Sink and Source wiring to match your specific sensor requirements.
Space-Saving Design: Slim module footprint allows for high-density configurations in control cabinets.
High Reliability: Built to Siemens’ industrial standards, ensuring long-term stability and minimal downtime.
Plug-and-Play: Easily configured through the TIA Portal, reducing engineering and commissioning time.
Signal Conversion: Converts 24V DC signals from the field level into digital logic for the CPU.
Status Monitoring: LED indicators provide immediate visual feedback for each input channel and module status.
Isolation: Galvanic isolation between the electronics and the load for enhanced system protection.
Manufacturer: Siemens
Product Number: 6ES7221-1BF32-0XB0
Series: SIMATIC S7-1200
Input Signal Type: Digital
Mounting: DIN rail
Operating Voltage: 24 V DC
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| SKU / Model | 6ES7221-1BF32-0XB0 |
|---|---|
| Brand | SIEMENS |
| Product type designation | SM 1221, DI 8x24 V DC |
| Rated value (DC) | 24 V |
| permissible range, lower limit (DC) | 20.4 V |
| permissible range, upper limit (DC) | 28.8 V |
| from backplane bus 5 V DC, max. | 105 mA |
| ● from load voltage L+ (without load), max. | 4 mA; per channel |
| ● present | Yes |
| Power loss, typ. | 1.5 W |
| Number of digital inputs | 8 |
| ● in groups of | 2 |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| — up to 50 °C, max. | 8 |
| — up to 40 °C, max. | 8 |
| ● Rated value (DC) | 24 V |
| ● for signal "0" | 5 V DC at 1 mA |
| ● for signal "1" | 15 V DC at 2.5 mA |
| ● for signal "0", max. (permissible quiescent current) | 1 mA |
| ● for signal "1", min. | 2.5 mA |
| ● for signal "1", typ. | 4 mA |
| — parameterizable | Yes |
| ● shielded, max. | 500 m |
| ● unshielded, max. | 300 m |
| ● Diagnostic alarm | Yes |
| ● for status of the inputs | Yes |
| ● between the channels, in groups of | 2 |
| IP degree of protection | IP20 |
| CE mark | Yes |
| CSA approval | Yes |
| UL approval | Yes |
| cULus | Yes |
| FM approval | Yes |
| RCM (formerly C-TICK) | Yes |
| KC approval | Yes |
| Marine approval | Yes |
| ● Fall height, max. | 0.3 m; five times, in product package |
| ● horizontal installation, min. | -20 °C |
| ● horizontal installation, max. | 60 °C |
| ● vertical installation, min. | -20 °C |
| ● vertical installation, max. | 50 °C |
| ● permissible temperature change | 5°C to 55°C, 3°C / minute |
| ● min. | -40 °C |
| ● max. | 70 °C |
| ● Storage/transport, min. | 660 hPa |
| ● Storage/transport, max. | 1 080 hPa |
| ● Operation at 25 ℃ without condensation, max. | 95 % |
| required front connector | Yes |
| Enclosure material (front) | - |
| ● Plastic | Yes |
| Width | 45 mm |
| Height | 100 mm |
| Depth | 75 mm |
| Weight, approx. | 170 g |
| last modified: | 2/26/2021 |
| Product Condition | Brand New, New - Backlog, New - No Original Box, New - Original Box Opened, Used - Average, Used - Below Average, Used - Excellent, Used - Fairly Good, Used - Good, Used - Poor, Used - Very Good |
| Weight | 0.170 kg |
| Dimensions | 9.00 × 10.50 × 5.80 mm |
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