Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | SB 1221, DI 4×24 V DC 200 kHz |
| Digital inputs | 4; Current-sourcing |
| Rated input voltage | 24 V DC |
| Input frequency | 200 kHz |
| Input delay, parameterizable | 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 |
| Backplane bus current | 40 mA at 5 V DC, typ. |
| Power loss | 1 W, typ. |
Applications
- Digital signal acquisition: 4 current-sourcing digital inputs acquire 24 V DC digital signals.
Key Features
- Digital inputs: 4 current-sourcing digital inputs in 1 group, with a 24 V DC rated input voltage.
- High-speed input: Digital inputs support 200 kHz.
- Input timing: Standard input delay is parameterizable from 0.1 μs to 20.0 μs or from 0.05 ms to 20.0 ms.
- Diagnostics and dimensions: Input-status LED indication; dimensions are 38 mm wide, 62 mm high and 21 mm deep.
- Environmental range: Operating ambient temperature is -40 °C to 60 °C; start-up is at -25 °C.
- Conformal coating: Conformal coating is provided as Class 2 for high reliability, with Type 1 protection against fouling.
Frequently Asked Questions
1. How many digital inputs does Siemens 6AG1221-3BD30-5XB0 have?
It has 4 current-sourcing digital inputs in 1 group.
2. What input voltage does this module use?
The rated input voltage is 24 V DC.
3. What input timing can be parameterized?
Standard input delay can be parameterized from 0.1 μs to 20.0 μs or from 0.05 ms to 20.0 ms.
4. How are input statuses indicated?
An LED indicates the status of the inputs.
5. What should be verified before requesting a quote?
Verify the exact model, 38 mm × 62 mm × 21 mm dimensions, 40 mA typical 5 V DC backplane-bus current and 1 W typical power loss.
