Key Features
- Digital input module: SB 1221 digital input module with 4 DI.
- Input rating: Digital inputs rated 24 V DC.
- High-speed input capability: Digital inputs at 200 kHz.
- Conformal coating: Supplied with conformal coating.
- Active product: Product lifecycle: Active Product.
Technical Summary
| Product type designation | SB 1221, DI 4×24 V DC 200 kHz |
|---|---|
| based on | 6ES7221-3BD30-0XB0 |
| Number of digital inputs | 4; Current-sourcing |
| Rated input voltage | 24 V |
| Input current, typ. from backplane bus 5 V DC | 40 mA |
| Power loss, typ. | 1 W |
| 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 |
| Diagnostics LED for input status | Yes |
| Ambient temperature during operation | -40 °C; = Tmin (incl. condensation/frost); start-up @ -25 °C |
Applications
- 24 V DC digital signal acquisition: Capturing 24 V DC digital input signals through 4 DI.
Frequently Asked Questions
What is Siemens 6AG1221-3BD30-5XB0?
It is an SIPLUS S7-1200 SB 1221 digital input module with 4 DI and 24 V DC input rating.
How many digital inputs does 6AG1221-3BD30-5XB0 have?
It has 4 digital inputs, current-sourcing, in groups of 4.
What are the key electrical details of 6AG1221-3BD30-5XB0?
The rated input voltage is 24 V, the power loss, typ. is 1 W, and the input current from backplane bus 5 V DC, typ. is 40 mA.
What are the operating temperature details for 6AG1221-3BD30-5XB0?
Ambient temperature during operation is -40 °C to 60 °C, with start-up at -25 °C.
What are the dimensions of 6AG1221-3BD30-5XB0?
The dimensions are 38 mm x 62 mm x 21 mm, and the weight, approx. is 35 g.
