The Siemens S7-1200 SIMATIC SB1221 Digital Input Module (6ES7 221-3BD30-0XB0) is a high-performance expansion component designed to enhance the input capabilities of the S7-1200 PLC series. With its compact design and advanced features, this module is ideal for applications requiring rapid and reliable digital signal processing.
Key Features
- Digital Inputs: 4 channels, sourcing type
- Input Voltage: 24 V DC
- Input Frequency: Up to 200 kHz
- Input Delay: Configurable between 0.1 ms to 20 ms
- Input Current:
- Signal “0”: Max. 1.4 mA
- Signal “1”: Min. 2.9 mA; Typ. 7 mA
- Input Voltage Thresholds:
- Signal “0”: 0 to 5 V DC
- Signal “1”: 15 to 30 V DC
- Cable Length: Shielded: Max. 50 m
- Diagnostics: LED indicators for input status
- Mounting: Directly on S7-1200 CPU
- Dimensions (W x H x D): 38 mm x 62 mm x 21 mm
- Weight: Approx. 35 g
- Protection Class: IP20
- Certifications: CE, UL, cULus, FM, RCM, KC, Marine approval
- Operating Temperature: -20°C to +60°C
- Storage Temperature: -40°C to +70°C
- Relative Humidity: Max. 95% at 25°C (non-condensing)
Applications
- High-Speed Counting: Ideal for applications requiring rapid signal processing.
- Industrial Automation: Enhances input capacity for S7-1200 PLCs.
- Process Control: Reliable input module for monitoring digital signals.
- Machine Building: Compact design suitable for space-constrained installations.
Why Choose the 6ES7 221-3BD30-0XB0?
- Compact Expansion: Adds 4 high-speed digital inputs without increasing panel size.
- Flexible Configuration: Configurable input delay settings for tailored response times.
- Reliable Performance: Designed for industrial environments with robust specifications.
- Seamless Integration: Directly mounts onto S7-1200 CPUs for easy installation.
The Siemens S7-1200 SIMATIC SB1221 Digital Input Module is an essential addition for enhancing the functionality and performance of your S7-1200 PLC system.
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