Technical Summary
| Product type designation | SB 1221, DI 4×5 V DC 200 kHz |
|---|---|
| Number of digital inputs | 4; Current-sourcing |
| Rated value (DC) | 5 V |
| Input current from backplane bus 5 V DC, typ. | 40 mA |
| Power loss, typ. | 1 W |
| for 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 |
| for interrupt inputs – Parameterizable | Yes |
| for technological functions – parameterizable | Yes |
| Diagnostics indication LED for status of the inputs | Yes |
Key Features
SIMATIC S7-1200 signal board
SB 1221 digital input module for the SIMATIC S7-1200 family.
SB 1221 digital input module for the SIMATIC S7-1200 family.
4 digital inputs
Provides 4 digital inputs with current-sourcing input design.
Provides 4 digital inputs with current-sourcing input design.
5 V DC, 200 kHz
Input rating is 5 V DC with 200 kHz specified in the product type designation.
Input rating is 5 V DC with 200 kHz specified in the product type designation.
Parameterizable inputs
Standard inputs, interrupt inputs, and technological functions are parameterizable.
Standard inputs, interrupt inputs, and technological functions are parameterizable.
Input status LED
Diagnostics indication LED for the status of the inputs.
Diagnostics indication LED for the status of the inputs.
Applications
Digital input signal acquisition
For acquiring four current-sourcing digital input signals in a SIMATIC S7-1200 setup.
For acquiring four current-sourcing digital input signals in a SIMATIC S7-1200 setup.
Frequently Asked Questions
What is Siemens 6ES7221-3AD30-0XB0 in the SIMATIC S7-1200 range?
It is an SB 1221 digital input module for the SIMATIC S7-1200 family.
How many digital inputs does 6ES7221-3AD30-0XB0 provide?
It provides 4 digital inputs.
What input rating is specified for 6ES7221-3AD30-0XB0?
The rated input value is 5 V DC.
Which signal type is used by 6ES7221-3AD30-0XB0 inputs?
The digital inputs are current-sourcing.
What installation or connection detail is specified for the shielded cable?
The maximum shielded cable length is 50 m, using shielded twisted pair.
