Product Description
Key Features
- Exact module identity: SIMATIC S7-300 SM 321 digital input module with 8 DI, isolated, 1x 20-pole.
- AC input voltage: Type of input voltage: AC. Rated value: 230 V; 120/230 V AC (47 … 63 Hz).
- Signal thresholds: Signal "0": 0 to 40V. Signal "1": 79 to 264V.
- Backplane bus current: Input current from backplane bus 5 V DC, max.: 29 mA.
- Installation capacity: Horizontal installation up to 60 °C, max.: 8. Vertical installation up to 40 °C, max.: 8.
- Connection and lifecycle: Required front connector: 20-pin. Product lifecycle: Product cancellation.
Applications
- AC digital signal input: Receives AC digital input signals through 8 digital inputs.
Technical Summary
| Product identity | SIMATIC S7-300 SM 321 digital input module |
|---|---|
| Digital inputs | 8 |
| Input voltage | AC; rated value 230 V; 120/230 V AC (47 … 63 Hz) |
| Signal "0" | 0 to 40V |
| Signal "1" | 79 to 264V |
| Input current from backplane bus 5 V DC, max. | 29 mA |
| Front connector | 20-pin |
| Potential separation | Between channels and backplane bus: Yes; Optocoupler |
| Isolation tested with | 4 000 V DC |
| Lifecycle | Product cancellation |
Frequently Asked Questions
Is 6ES7321-1FF01-0AA0 the SIMATIC S7-300 SM 321 module with 8 DI?
Yes. It is a SIMATIC S7-300 SM 321 digital input module with 8 isolated AC digital inputs.
What input voltage does 6ES7321-1FF01-0AA0 use?
It uses AC input voltage with a rated value of 230 V; 120/230 V AC (47 … 63 Hz).
What connector is required for this module?
The required front connector is 20-pin.
Does this module have potential separation?
Yes, potential separation exists between the digital inputs and the backplane bus by optocoupler. There is no potential separation between channels.
What lifecycle data applies to 6ES7321-1FF01-0AA0?
Product lifecycle: Product cancellation.
