Key Features
- 64 digital inputs: Provides 64 digital inputs for SIMATIC S7-300 signal acquisition.
- 24 V DC input signals: Designed for DC input voltage with a rated value of 24 V.
- Isolated groups of 16: Digital inputs are isolated in groups of 16, with optocoupler separation between the channels and backplane bus.
- Front connector requirement: Requires front connector cable 6ES7392-4Bxx0-0AA0 and terminal blocks 6ES7392-1xN00-0AA0.
- Status indication: Status indicator digital input (green): Yes.
Applications
- 24 V DC digital signal acquisition: For reading 64 discrete 24 V DC input signals in a SIMATIC S7-300 I/O station.
Technical Summary
| Product function | SIMATIC S7-300 digital input SM 321 |
|---|---|
| Number of digital inputs | 64 |
| Input voltage | 24 V |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Input current for signal "1", typ. | 4.2 mA |
| Power loss, typ. | 7 W |
| Potential separation digital inputs between the channels and backplane bus | Yes; Optocoupler |
| Potential separation digital inputs between the channels, in groups of | 16 |
| Required front connector | Cable: 6ES7392-4Bxx0-0AA0 terminal blocks: 6ES7392-1xN00-0AA0 |
| Load voltage L+ Reverse polarity protection | Yes |
Frequently Asked Questions
What is Siemens 6ES7321-1BP00-0AA0 used for?
It is a SIMATIC S7-300 digital input SM 321 for 64 digital inputs.
How many digital inputs does 6ES7321-1BP00-0AA0 provide?
It provides 64 digital inputs.
What input voltage does the 6ES7321-1BP00-0AA0 use?
The input voltage is 24 V DC.
What wiring parts are required for the front connector?
The required front connector uses cable 6ES7392-4Bxx0-0AA0 and terminal blocks 6ES7392-1xN00-0AA0.
