Key Features
- SM 1221 digital input module: Product type designation: SM 1221, DI 16×24 V DC.
- 16 digital inputs: Digital input module with 16 inputs in groups of 4.
- 24 V DC signal rating: Rated value (DC): 24 V with input voltage for signal "0" and signal "1" specified.
- Conformal coating: SIPLUS version with conformal coating for use in industrial process technology.
- Required front connector: Connection method: required front connector.
- Compact dimensions: Width 45 mm, height 100 mm, depth 75 mm.
Technical Summary
| Product type designation | SM 1221, DI 16×24 V DC |
|---|---|
| Based on | 6ES7221-1BH32-0XB0 |
| Number of digital inputs | 16 |
| Input groups | 4 |
| Rated value (DC) | 24 V |
| Permissible range, lower limit (DC) | 20.4 V |
| Permissible range, upper limit (DC) | 28.8 V |
| Input current from backplane bus 5 V DC, max. | 130 mA |
| Power loss, typ. | 2.5 W |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Required front connector | Yes |
Applications
- Digital input acquisition: Connection of 24 V DC digital input signals on a module with 16 inputs.
- Group-based input wiring: Input handling in groups of 4 for the module's digital inputs.
Frequently Asked Questions
What is the exact Siemens model and product type of 6AG1221-1BH32-2XB0?
It is a SIPLUS S7-1200 SM 1221 digital input module, product type designation SM 1221, DI 16×24 V DC.
How many digital inputs does 6AG1221-1BH32-2XB0 have?
It has 16 digital inputs, arranged in groups of 4.
What is the input voltage rating for 6AG1221-1BH32-2XB0?
The rated value is 24 V DC, with a permissible range from 20.4 V DC to 28.8 V DC.
What connection detail should be confirmed for 6AG1221-1BH32-2XB0?
A required front connector is specified for the module.
What are the size details for 6AG1221-1BH32-2XB0?
The module measures 45 mm wide, 100 mm high, and 75 mm deep.
