Product information
Overview
Key Features
- Digital input capacity: 64 digital inputs with an IEC 61131 type 1 input characteristic curve.
- Input supply: 24 V DC rated input voltage; signal "0" is -30 to +5 V and signal "1" is 13 to 30V.
- Response time: Standard input rated response time is 4.2 ms, with 1.2 ms min. and 4.8 ms max. for both transitions.
- Grouped isolation: Digital inputs are isolated from the backplane bus by an optocoupler and isolated between channels in groups of 16.
- Front connection: Required front connector: cable 6ES7392-4Bxx0-0AA0 and terminal blocks 6ES7392-1xN00-0AA0.
- Product lifecycle: Product cancellation.
Technical Summary
| Product type | SIMATIC S7-300 digital input SM 321 |
|---|---|
| Digital inputs | 64 |
| Rated input voltage | 24 V DC |
| Input signal "0" | -30 to +5 V |
| Input signal "1" | 13 to 30V |
| Input current for signal "1", typ. | 4.2 mA |
| Standard input response time | 4.2 ms |
| Channel isolation | In groups of 16 |
| Backplane bus isolation | Yes; Optocoupler |
| Required front connector | Cable: 6ES7392-4Bxx0-0AA0; terminal blocks: 6ES7392-1xN00-0AA0 |
Frequently Asked Questions
What is Siemens 6ES7321-1BP00-0AA0?
It is a SIMATIC S7-300 digital input SM 321 with 64 digital inputs and 24 V DC rated input voltage.
How are the digital inputs isolated?
The digital inputs are isolated from the backplane bus by an optocoupler and isolated between channels in groups of 16.
Which front connector is required?
The required front connector uses cable 6ES7392-4Bxx0-0AA0 and terminal blocks 6ES7392-1xN00-0AA0.
Can I request a quotation for a required quantity and destination?
Yes. Send the required quantity, destination, and project context for an MRO or project quotation.
