Key Features
- Digital input module: SIMATIC S7-300 digital input SM 321 with 16 DI.
- 24 V DC input voltage: Input voltage type: DC, rated value (DC): 24 V.
- Diagnostics and hardware interrupt: Hardware interrupt and diagnostics are supported.
- Isochronous mode: Suitable for isochronous mode.
- Connection and isolation: 1x 20-pole required front connector with isolation tested with 500 V DC.
Technical Summary
| Product function | Isochronous mode: Yes |
|---|---|
| Digital inputs | Number of digital inputs: 16 |
| Input voltage | Rated value (DC): 24 V |
| Input voltage range | permissible range, lower limit (DC): 20.4 V |
| Input voltage range upper limit | permissible range, upper limit (DC): 28.8 V |
| Input voltage signal 1 | 13 to 30V |
| Input delay | parameterizable: 0.1 / 0.5 / 3 / 15 / 20 ms |
| Diagnostics | Diagnostics function: Yes; Parameterizable |
| Hardware interrupt | Hardware interrupt: Yes; Parameterizable |
| Connection method | required front connector: 20-pin |
Applications
- Digital input acquisition: Acquiring 16 digital input signals at 24 V DC in a SIMATIC S7-300 setup.
Frequently Asked Questions
What is Siemens 6ES7321-7BH01-0AB0?
It is a SIMATIC S7-300 digital input SM 321 module with 16 DI.
What input voltage does 6ES7321-7BH01-0AB0 use?
The input voltage type is DC and the rated value is 24 V.
How is 6ES7321-7BH01-0AB0 connected?
It requires a 20-pin front connector.
Does 6ES7321-7BH01-0AB0 support diagnostics and hardware interrupts?
Yes. Diagnostics and hardware interrupt are supported, and both are parameterizable.
