Siemens 6ES7221-1BH32-0XB0 | SM 1221 Digital Input Module 16DI x 24VDC
Siemens 6ES7221-1BH32-0XB0 | SM 1221 Digital Input Module 16DI x 24VDC
Manufacturer: Siemens
Product No.: 6ES7221-1BH32-0XB0
Condition:1000 in stock
Product Type: PLC Digital Input Modules
Payment: T/T, Western Union
Weight: 1000g
Shipping port: Xiamen
Warranty: 12 months
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⚡ Siemens 6ES7221-1BH32-0XB0 Digital Input Module
The Siemens SM 1221 is a compact 16-channel digital input module engineered for seamless integration with S7-1200 programmable logic controllers. This high-density I/O module delivers reliable signal acquisition from field devices in industrial automation environments.
🔧 Technical Parameters
- Part Number: 6ES7221-1BH32-0XB0
- Series: SIMATIC S7-1200 Signal Modules
- Input Channels: 16 digital inputs (sink/source)
- Input Voltage: 24V DC nominal (20.4-28.8V range)
- Input Current: Typ. 4 mA per channel
- Input Delay: 0.2 to 20 ms (configurable)
- Isolation: 500V AC between channels and backplane
- Connection Type: 20-pin front connector (push-in terminals)
- Dimensions: 45 x 100 x 75 mm (W x H x D)
- Operating Temperature: 0°C to +60°C (horizontal mounting)
- Certifications: CE, UL, cULus, FM, ATEX, IECEx
🏭 Industrial Applications
Manufacturing Automation: Monitor limit switches, proximity sensors, and photoelectric sensors on assembly lines and packaging machinery for precise position detection and quality control.
Building Management: Interface with door contacts, motion detectors, and emergency stop buttons in HVAC systems, access control, and fire safety installations.
Process Control: Acquire status signals from valve position indicators, level switches, and pressure transmitters in water treatment, food & beverage, and chemical processing plants.
Material Handling: Track conveyor belt sensors, barcode scanners, and safety light curtains in warehouse automation and logistics distribution centers.
💡 Engineering Solutions
Space-Efficient Design: Compact form factor allows up to 8 signal modules per CPU, maximizing I/O density while minimizing control cabinet footprint and installation costs.
Flexible Configuration: TIA Portal software enables individual channel parameterization including input delay filtering, diagnostic alarms, and hardware interrupt triggers for time-critical applications.
Diagnostic Intelligence: Built-in channel diagnostics with LED status indicators accelerate troubleshooting by identifying wiring faults, short circuits, and sensor failures without external test equipment.
Hot-Swappable Operation: Front connector design supports module replacement during system operation (with CPU support), reducing downtime in 24/7 production environments.
📋 Package Includes
- 1x Siemens 6ES7221-1BH32-0XB0 SM 1221 module
- 20-pin front connector with labeling strips
- Installation and wiring documentation
Genuine Siemens SIMATIC component with global warranty support. Compatible with S7-1200 CPU 1211C, 1212C, 1214C, 1215C, and 1217C controllers.
Product Description
⚡ Siemens 6ES7221-1BH32-0XB0 Digital Input Module
The Siemens SM 1221 is a compact 16-channel digital input module engineered for seamless integration with S7-1200 programmable logic controllers. This high-density I/O module delivers reliable signal acquisition from field devices in industrial automation environments.
🔧 Technical Parameters
- Part Number: 6ES7221-1BH32-0XB0
- Series: SIMATIC S7-1200 Signal Modules
- Input Channels: 16 digital inputs (sink/source)
- Input Voltage: 24V DC nominal (20.4-28.8V range)
- Input Current: Typ. 4 mA per channel
- Input Delay: 0.2 to 20 ms (configurable)
- Isolation: 500V AC between channels and backplane
- Connection Type: 20-pin front connector (push-in terminals)
- Dimensions: 45 x 100 x 75 mm (W x H x D)
- Operating Temperature: 0°C to +60°C (horizontal mounting)
- Certifications: CE, UL, cULus, FM, ATEX, IECEx
🏭 Industrial Applications
Manufacturing Automation: Monitor limit switches, proximity sensors, and photoelectric sensors on assembly lines and packaging machinery for precise position detection and quality control.
Building Management: Interface with door contacts, motion detectors, and emergency stop buttons in HVAC systems, access control, and fire safety installations.
Process Control: Acquire status signals from valve position indicators, level switches, and pressure transmitters in water treatment, food & beverage, and chemical processing plants.
Material Handling: Track conveyor belt sensors, barcode scanners, and safety light curtains in warehouse automation and logistics distribution centers.
💡 Engineering Solutions
Space-Efficient Design: Compact form factor allows up to 8 signal modules per CPU, maximizing I/O density while minimizing control cabinet footprint and installation costs.
Flexible Configuration: TIA Portal software enables individual channel parameterization including input delay filtering, diagnostic alarms, and hardware interrupt triggers for time-critical applications.
Diagnostic Intelligence: Built-in channel diagnostics with LED status indicators accelerate troubleshooting by identifying wiring faults, short circuits, and sensor failures without external test equipment.
Hot-Swappable Operation: Front connector design supports module replacement during system operation (with CPU support), reducing downtime in 24/7 production environments.
📋 Package Includes
- 1x Siemens 6ES7221-1BH32-0XB0 SM 1221 module
- 20-pin front connector with labeling strips
- Installation and wiring documentation
Genuine Siemens SIMATIC component with global warranty support. Compatible with S7-1200 CPU 1211C, 1212C, 1214C, 1215C, and 1217C controllers.