Key Features
- Digital input SB 1221 module: SIMATIC S7-1200 digital input module with 4 DI.
- 5 V DC, 200 kHz: Specified for 5 V DC input value and 200 kHz.
- Current-sourcing inputs: 4 digital inputs with current-sourcing input type.
- Input status LED: Diagnostics indication LED for the status of the inputs.
- Parameterizable inputs: Standard inputs, interrupt inputs, and technological functions are parameterizable.
Technical Summary
| Product type designation | SB 1221, DI 4×5 V DC 200 kHz |
|---|---|
| Number of digital inputs | 4; Current-sourcing |
| Input voltage rated value (DC) | 5 V |
| Input current from backplane bus 5 V DC, typ. | 40 mA |
| Power loss, typ. | 1 W |
| Input current for signal "0", max. (permissible quiescent current) | 2.2 mA |
| Input current for signal "1", min. | 5.1 mA |
| Input current for signal "1", typ. | 15 mA |
| 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 |
| Interrupt inputs parameterizable | Yes |
| Technological functions parameterizable | Yes |
| Diagnostics indication LED for status of the inputs | Yes |
Applications
- Reading current-sourcing digital signals: For integrating 4 current-sourcing digital inputs into an S7-1200 system.
Frequently Asked Questions
What is Siemens 6ES7221-3AD30-0XB0?
It is a SIMATIC S7-1200 digital input SB 1221 module with 4 DI.
How many digital inputs does 6ES7221-3AD30-0XB0 have?
It has 4 digital inputs.
What are the input rating and signal details for this SB 1221 module?
The module is specified for 5 V DC, with signal "1" at 5.1 mA min. and 15 mA typ., and signal "0" at 2.2 mA max.
Which input functions are parameterizable on 6ES7221-3AD30-0XB0?
Standard inputs, interrupt inputs, and technological functions are parameterizable.
