Key Features
- 32 digital inputs: Provides 32 digital inputs for S7-400 signal acquisition.
- 24 V DC input voltage: Input voltage type is DC with a rated value of 24 V.
- Conformal coating: Supplied with conformal coating for the SIPLUS version.
- Operating temperature: Ambient temperature during operation: -25 °C to 60 °C.
- Diagnostics status indicator: Status indicator digital input (green): Yes.
- Based on 6ES7421-1BL01-0AA0: Based on 6ES7421-1BL01-0AA0.
Applications
- 24 V DC signal acquisition: For connecting 24 V DC digital input signals to an S7-400 system.
- 2-wire sensor input connection: For connecting 2-wire sensors to the digital input module.
Technical Summary
| Based on | 6ES7421-1BL01-0AA0 |
|---|---|
| Number of digital inputs | 32 |
| Input characteristic according to IEC 61131 | Type 1 |
| Rated value (DC) | 24 V |
| for signal "0" | -30 V DC to +5 V DC |
| for signal "1" | 13 V DC to 30 V DC |
| Input current for signal "1", typ. | 7 mA |
| Power loss, typ. | 6 W |
| Input current from backplane bus 5 V DC, max. | 20 mA |
Frequently Asked Questions
What is Siemens 6AG1421-1BL01-2AA0?
It is a SIPLUS S7-400 SM 421 32DI digital input module based on 6ES7421-1BL01-0AA0.
How many digital inputs does 6AG1421-1BL01-2AA0 have?
It has 32 digital inputs.
What is the input rating of 6AG1421-1BL01-2AA0?
The input voltage type is DC and the rated value is 24 V.
What are the maximum cable lengths for 6AG1421-1BL01-2AA0?
The maximum cable length is 1 000 m for shielded cable and 600 m for unshielded cable.
What are the operating temperature limits of 6AG1421-1BL01-2AA0?
Ambient temperature during operation is -25 °C to 60 °C.
