Technical Summary
| Product function | digital input SM 321 |
|---|---|
| Number of digital inputs | 8 |
| Input voltage, rated value (AC) | 120 V; 120/230 V AC (47 … 63 Hz) |
| Load voltage L1, rated value (AC) | 230 V; 120/230 V AC; all load voltages must have the same phase. |
| Input current from backplane bus 5 V DC, max. | 100 mA |
| Power loss, typ. | 4.9 W |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Potential separation between the channels and backplane bus | Yes; Optocoupler |
| Required front connector | 40-pin |
Applications
For connecting 8 AC digital input signals to a SIMATIC S7-300 system.
Key Features
Digital input SM 321 for the SIMATIC S7-300 family.
Provides 8 digital inputs.
Input voltage rated value: 120 V; 120/230 V AC (47 … 63 Hz).
Potential separation between the channels and backplane bus with optocoupler.
Required front connector: 40-pin.
Product lifecycle: Product cancellation.
Frequently Asked Questions
What is Siemens 6ES7321-1FF10-0AA0?
It is a SIMATIC S7-300 digital input SM 321 spare part with 8 DI.
What input voltage does 6ES7321-1FF10-0AA0 use?
The input voltage rated value is 120 V; 120/230 V AC (47 … 63 Hz).
What front connector is required for 6ES7321-1FF10-0AA0?
A 40-pin front connector is required.
What is the lifecycle status of 6ES7321-1FF10-0AA0?
Product lifecycle: Product cancellation.
