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6ES7221-1BH32-0XB0 | Siemens 16-Point Digital Input Module, S7-1200 Series
- Regular price
- $199.00
- Sale price
- $199.00
- Regular price
-
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Product Description P/N: 6ES7221-1BH32-0XB0
Description
The Siemens 6ES7221-1BH32-0XB0 is a SIMATIC S7-1200 digital input module designed to expand the input capacity of S7-1200 PLC systems. Providing 16 sink/source digital inputs rated for 24 VDC, it supports a permissible operating range of 20.4 to 28.8 VDC for reliable signal detection in industrial automation environments. With a compact form factor and DIN-rail mounting, the module is suited for space-efficient control panel installations requiring robust and scalable I/O expansion.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | PLCs/Machine Control |
| Part Number | 6ES7221-1BH32-0XB0 |
| Subcategory | VDC Logic I/O Module |
| Design | Digital Input Module (SM 1221) |
| Digital Inputs | 16 |
| Input/Supply Voltage | 24 VDC |
| Permissible Voltage Range | 20.4–28.8 VDC |
| Input Current | 4 mA per channel |
| Alarm Inputs | Yes |
| Connection Type | Screw terminals |
| Mounting | 35 mm DIN rail |
| Dimensions (H × W × D) | 45 × 100 × 75 mm |
| Protection Rating | IP20 |
| Ambient Temperature (Min) | –20 °C |
| Ambient Temperature (Max) | 60 °C |
Information About 6ES7221-1BH32-0XB0
The 6ES7221-1BH32-0XB0 is part of the SM 1221 series, offering 16 discrete inputs for interfacing field devices such as sensors, switches, and status signals with S7-1200 controllers. Designed with screw-terminal connections, it provides secure wiring and straightforward integration in distributed automation architectures. Operating from –20 to 60 °C, with an IP20 protection rating, the module is intended for installation within enclosed control cabinets. Although it does not include short-circuit protection, it supports alarm inputs and integrates seamlessly with TIA Portal for diagnostics, configuration, and engineering workflows. Its compact 45 × 100 × 75 mm housing preserves panel space while delivering dependable DI functionality for small to mid-scale automation systems.
Key Features:
- 16 digital inputs: Provides expanded signal acquisition for S7-1200 PLC systems.
- 24 VDC input rating: Operates across a 20.4–28.8 VDC permissible voltage range.
- Compact SM 1221 design: Space-efficient module for scalable I/O configurations.
- Screw-terminal connection: Ensures secure and maintainable field wiring.
- Wide operating temperature range: Suitable for –20 to 60 °C industrial environments.
- Alarm input support: Enables enhanced monitoring and diagnostics.
- IP20 protection rating: Intended for panel-enclosed industrial installations.
- Seamless TIA Portal integration: Streamlines engineering, diagnostics, and system configuration.
The 6ES7221-1BH32-0XB0 delivers the reliability and precision required for expanding digital input capacity in SIMATIC S7-1200 automation systems.
Description
The Siemens 6ES7221-1BH32-0XB0 is a SIMATIC S7-1200 digital input module designed to expand the input capacity of S7-1200 PLC systems. Providing 16 sink/source digital inputs rated for 24 VDC, it supports a permissible operating range of 20.4 to 28.8 VDC for reliable signal detection in industrial automation environments. With a compact form factor and DIN-rail mounting, the module is suited for space-efficient control panel installations requiring robust and scalable I/O expansion.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | PLCs/Machine Control |
| Part Number | 6ES7221-1BH32-0XB0 |
| Subcategory | VDC Logic I/O Module |
| Design | Digital Input Module (SM 1221) |
| Digital Inputs | 16 |
| Input/Supply Voltage | 24 VDC |
| Permissible Voltage Range | 20.4–28.8 VDC |
| Input Current | 4 mA per channel |
| Alarm Inputs | Yes |
| Connection Type | Screw terminals |
| Mounting | 35 mm DIN rail |
| Dimensions (H × W × D) | 45 × 100 × 75 mm |
| Protection Rating | IP20 |
| Ambient Temperature (Min) | –20 °C |
| Ambient Temperature (Max) | 60 °C |
Information About 6ES7221-1BH32-0XB0
The 6ES7221-1BH32-0XB0 is part of the SM 1221 series, offering 16 discrete inputs for interfacing field devices such as sensors, switches, and status signals with S7-1200 controllers. Designed with screw-terminal connections, it provides secure wiring and straightforward integration in distributed automation architectures. Operating from –20 to 60 °C, with an IP20 protection rating, the module is intended for installation within enclosed control cabinets. Although it does not include short-circuit protection, it supports alarm inputs and integrates seamlessly with TIA Portal for diagnostics, configuration, and engineering workflows. Its compact 45 × 100 × 75 mm housing preserves panel space while delivering dependable DI functionality for small to mid-scale automation systems.
Key Features:
- 16 digital inputs: Provides expanded signal acquisition for S7-1200 PLC systems.
- 24 VDC input rating: Operates across a 20.4–28.8 VDC permissible voltage range.
- Compact SM 1221 design: Space-efficient module for scalable I/O configurations.
- Screw-terminal connection: Ensures secure and maintainable field wiring.
- Wide operating temperature range: Suitable for –20 to 60 °C industrial environments.
- Alarm input support: Enables enhanced monitoring and diagnostics.
- IP20 protection rating: Intended for panel-enclosed industrial installations.
- Seamless TIA Portal integration: Streamlines engineering, diagnostics, and system configuration.
The 6ES7221-1BH32-0XB0 delivers the reliability and precision required for expanding digital input capacity in SIMATIC S7-1200 automation systems.
