Key Features
- Digital input module: SIMATIC S7-300 digital input SM 321 with 16 DI.
- Input voltage: 24-48 V AC/DC input voltage with single-point grounding.
- Isolation: Isolated module with 1 500 V AC isolation tested with.
- Connection method: Required front connector: 40-pin.
- Channel design: Potential separation digital inputs between the channels and backplane bus by optocoupler.
Applications
- Digital input signal acquisition: For 16-channel digital input acquisition with 24-48 V AC/DC signals.
- Module-level integration in S7-300 systems: For integrating a SIMATIC S7-300 digital input module through the 1x 40-pole front connector.
Technical Summary
| Product function | Digital input SM 321 |
|---|---|
| Number of digital inputs | 16 |
| Input voltage | 24-48 V AC/DC |
| Load voltage L+ rated value (DC) | 24 V |
| Input current from backplane bus 5 V DC, max. | 100 mA |
| Power loss, typ. | 1.5 W; at 24 V; 2,8 W at 48 V |
| Potential separation digital inputs between the channels and backplane bus | Yes; Optocoupler |
| Required front connector | 40-pin |
Frequently Asked Questions
What is the Siemens 6ES7321-1CH00-0AA0?
It is a SIMATIC S7-300 digital input SM 321 with 16 DI.
What input voltage does 6ES7321-1CH00-0AA0 support?
The module supports 24-48 V AC/DC input voltage.
What connector is required for 6ES7321-1CH00-0AA0?
A 40-pin front connector is required.
How many digital inputs does 6ES7321-1CH00-0AA0 provide?
It provides 16 digital inputs.
