Key Features
- Digital input module: SIMATIC S7-400 digital input SM 421.
- Input channels: 32 DI.
- Input voltage: 24 V DC.
- Isolation: Isolated; isolation tested with 500 V AC/707 V DC, type test.
- Physical size: Width 25 mm, height 290 mm, depth 210 mm.
- Lifecycle status: Announcement of product phase-out.
Technical Summary
| Product type | SIMATIC S7-400, digital input SM 421 |
|---|---|
| Number of digital inputs | 32 |
| Input voltage, rated value (DC) | 24 V |
| Input characteristic according to IEC 61131 | Type 1 |
| Number of simultaneously controllable inputs | 32 |
| Status indicator digital input (green) | Yes |
| Isolation tested with | 500 V AC/707 V DC, type test |
| Product lifecycle | Announcement of product phase-out |
Applications
- Digital input acquisition: For reading 32 digital input signals at 24 V DC.
Frequently Asked Questions
What is the exact Siemens model and module type of 6ES7421-1BL01-0AA0?
It is a SIMATIC S7-400 digital input SM 421 module.
How many digital inputs does 6ES7421-1BL01-0AA0 have?
It has 32 digital inputs.
What is the input voltage for 6ES7421-1BL01-0AA0?
The rated input voltage is 24 V DC.
What are the dimensions of 6ES7421-1BL01-0AA0?
Width 25 mm, height 290 mm, depth 210 mm.
What should be confirmed before ordering 6ES7421-1BL01-0AA0?
Confirm the exact order number, quantity, destination, and stock and dispatch conditions.
