Product information
Overview
Key Features
- Digital input capacity: 4 current-sourcing digital inputs, in groups of 4.
- Rated input voltage: 5 V DC rated input voltage.
- Input current: Signal 0: 2.2 mA maximum permissible quiescent current; signal 1: 5.1 mA minimum and 15 mA typical.
- Parameterizable inputs: 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 and 0.05 / 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 ms settings.
- Cable and diagnostics: Maximum shielded cable length is 50 m with twisted pair; an LED indicates input status.
Technical Summary
| Product type designation | SB 1221, DI 4×5 V DC 200 kHz |
|---|---|
| Digital inputs | 4; Current-sourcing |
| Rated input voltage | 5 V DC |
| Signal 0 input voltage | (L+ minus 1.0 V DC) … L+ (2.2 … 0 mA) |
| Signal 1 input voltage | 0 V … (L+ minus 2.0 V DC (20 … 5.1 mA)) |
| Input current, signal 0 max. | 2.2 mA |
| Input current, signal 1 min. | 5.1 mA |
| Input current, signal 1 typ. | 15 mA |
| Backplane bus current, typ. | 40 mA |
| Power loss, typ. | 1 W |
Frequently Asked Questions
What is the exact product type of Siemens 6ES7221-3AD30-0XB0?
It is an SB 1221 digital input with 4 DI, 5 V DC and 200 kHz designation.
How many digital inputs does this module have?
It has 4 current-sourcing digital inputs in groups of 4.
What cable specification is supported?
The maximum shielded cable length is 50 m with twisted pair.
Can the inputs be parameterized?
Yes. Standard inputs, interrupt inputs and technological functions are parameterizable; standard input settings include the supplied μs and ms values.
What information should I provide for a quotation?
Provide the required quantity, destination and project-list context for Siemens 6ES7221-3AD30-0XB0.
