Product Overview
Technical Summary
| Product type designation | SB 1221, DI 4×5 V DC 200 kHz |
|---|---|
| Digital inputs | 4; Current-sourcing |
| Input voltage, rated value (DC) | 5 V |
| Input current, signal "0", max. | 2.2 mA |
| Input current, signal "1", min. | 5.1 mA |
| Input current, signal "1", typ. | 15 mA |
| Product lifecycle | Active Product |
Key Features
- Product designation: SB 1221, DI 4×5 V DC 200 kHz.
- Digital inputs: 4 current-sourcing digital inputs, in groups of 4.
- Input voltage: Rated value: 5 V DC.
- Input current: Signal "0": maximum 2.2 mA; signal "1": minimum 5.1 mA and typical 15 mA.
- Cable and diagnostics: Shielded twisted-pair cable length: maximum 50 m; input-status LED indication: Yes.
Frequently Asked Questions
What does Siemens 6ES7221-3AD30-0XB0 identify?
It identifies the SIMATIC S7-1200 SB 1221 digital input module with 4 DI, 5 V DC, 200 kHz, and current-sourcing inputs.
Which specifications distinguish this MLFB variant?
Check the SB 1221 designation, 4 current-sourcing digital inputs, 5 V DC rated input, and 200 kHz capability.
What details are needed to request a quotation?
Provide the complete code 6ES7221-3AD30-0XB0, required quantity, and destination.
