Key Features
- 16 digital inputs: Digital input SM 321 with 16 DI.
- 24 V DC input: Input voltage type: DC; rated value: 24 V.
- Diagnostics and hardware interrupt: Diagnostics function: Yes; parameterizable. Hardware interrupt: Yes; parameterizable.
- Isolated design: Potential separation between the channels and backplane bus: Yes; Optocoupler.
- Conformal coating: SIPLUS S7-300 SM 321 16 DI with conformal coating.
- Product cancellation: Product lifecycle: Product cancellation.
Technical Summary
| based on | 6ES7321-7BH01-0AB0 |
|---|---|
| Product function | Isochronous mode: Yes |
| Digital inputs | 16 |
| Input voltage | 24 V DC |
| Input voltage, signal "0" | -30 … +11.2 V |
| Input voltage, signal "1" | 13 to 30V |
| Input characteristic curve in accordance with IEC 61131, type 2 | Yes |
| Diagnostics function | Yes; Parameterizable |
| Hardware interrupt | Yes; Parameterizable |
| Isolation tested with | 500 V DC |
| Product lifecycle | Product cancellation |
Applications
- 24 V DC digital signal acquisition: For reading 24 V DC digital input signals.
- Event-based input handling: For digital input processing with hardware interrupt support.
- Diagnostic input monitoring: For checking digital input status and diagnostic information.
Frequently Asked Questions
What is Siemens 6AG1321-7BH01-4AS0?
It is a SIPLUS S7-300 SM 321 16 DI digital input module, based on 6ES7321-7BH01-0AB0.
How many digital inputs does 6AG1321-7BH01-4AS0 have?
It has 16 digital inputs.
What is the input voltage for this SM 321 module?
The input voltage type is DC and the rated value is 24 V.
What connection and protection details are listed for this module?
It has 1x 20-pole connection, conformal coating, and isolation tested with 500 V DC.
