Product Description
Key Features
- Product identity: SIMATIC S7-1200 digital input SB 1221; product type designation: SB 1221, DI 4×5 V DC 200 kHz.
- Digital input capacity: 4 current-sourcing digital inputs, in groups of 4.
- Input voltage: Rated input voltage: 5 V DC. Signal 0: (L+ minus 1.0 V DC) … L+ (2.2 … 0 mA). Signal 1: 0 V … (L+ minus 2.0 V DC (20 … 5.1 mA)).
- Input current: Signal 0 maximum permissible quiescent current: 2.2 mA. Signal 1 minimum input current: 5.1 mA; typical input current: 15 mA.
- Parameterization and cable: Standard inputs are parameterizable with 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 μs or 0.05 / 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 ms. Shielded twisted-pair cable: maximum 50 m.
- Lifecycle and diagnostics: Lifecycle: Active Product. Input status LED indication: Yes.
Technical Summary
| Product type designation | SB 1221, DI 4×5 V DC 200 kHz |
|---|---|
| Number of digital inputs | 4; Current-sourcing |
| Rated input voltage | 5 V DC |
| Input current, signal 1, typ. | 15 mA |
| Input current, signal 0, max. (permissible quiescent current) | 2.2 mA |
| Input current, signal 1, min. | 5.1 mA |
| Input current from backplane bus 5 V DC, typ. | 40 mA |
| Power loss, typ. | 1 W |
| Input status LED indication | Yes |
| Lifecycle | Active Product |
Frequently Asked Questions
What is the exact order number for the SB 1221 digital input?
The exact order number is 6ES7221-3AD30-0XB0.
How many digital inputs does 6ES7221-3AD30-0XB0 have?
It has 4 current-sourcing digital inputs, in groups of 4.
What is the rated input voltage?
The rated input voltage is 5 V DC.
What cable length is supported?
Shielded twisted-pair cable has a maximum length of 50 m.
What lifecycle data is supplied for this model?
The lifecycle is Active Product.
