Key Features
- SIMATIC S7-300 digital input module: Digital input SM 321 for the SIMATIC S7-300 system.
- 16 digital inputs: Provides 16 DI for digital signal acquisition.
- 24 V DC input rating: Rated for 24 V DC input voltage.
- 1x 20-pole front connector: Requires a 20-pin front connector.
- 0.05 ms input delay: Input delay is 0.05 ms.
- Isolated inputs: Digital inputs are isolated.
Technical Summary
| Product function | Digital input SM 321 |
|---|---|
| Number of digital inputs | 16 |
| Input voltage type | DC |
| Input voltage rated value | 24 V |
| Load voltage L+ rated value | 24 V |
| Front connector | 20-pin |
| Input delay | 0.05 ms |
| Input current from backplane bus 5 V DC, max. | 110 mA |
| Power loss, typ. | 3.8 W |
| Isolation tested with | 500 V DC |
Applications
- 24 V DC digital signal acquisition: For connecting 24 V DC digital input signals to a SIMATIC S7-300 system.
Frequently Asked Questions
What is the exact model of this Siemens input module?
6ES7321-1BH10-0AA0, SIMATIC S7-300 digital input SM 321.
How many digital inputs does 6ES7321-1BH10-0AA0 provide?
It provides 16 digital inputs.
What input voltage does this Siemens SM 321 module use?
The input voltage is 24 V DC.
What front connector is required for this module?
A 20-pin front connector is required.
What is the input delay of this digital input module?
The input delay is 0.05 ms.
