Product Description
Key Features
- Digital input capacity: Has 64 digital inputs with an IEC 61131 type 1 input characteristic curve.
- Input supply and response: Input voltage is 24 V DC; input current for signal "1" is 4.2 mA typ., with 4.2 ms rated response.
- Grouped isolation: Digital inputs are isolated from the backplane bus by an optocoupler and are arranged in groups of 16; channels are not isolated from each other.
- Mounting capacity: For all mounting positions, the maximum is 64 up to 40 °C and 32 up to 60 °C; for vertical installation, the maximum is 32 up to 40 °C.
- Required connection components: Required front connection uses cable 6ES7392-4Bxx0-0AA0 and terminal blocks 6ES7392-1xN00-0AA0.
- Lifecycle status: Product lifecycle: Product cancellation.
Technical Summary
| Product type | SIMATIC S7-300 digital input SM 321 |
|---|---|
| Digital inputs | 64 |
| Input voltage | 24 V DC rated value |
| Input current for signal "1" | 4.2 mA typ. |
| Rated response | 4.2 ms |
| Input isolation | Between digital inputs and backplane bus: Yes; Optocoupler |
| Isolation grouping | Between channels, in groups of 16 |
| All mounting positions | 64 up to 40 °C; 32 up to 60 °C |
| Required front connector | Cable: 6ES7392-4Bxx0-0AA0; terminal blocks: 6ES7392-1xN00-0AA0 |
| Product lifecycle | Product cancellation |
Frequently Asked Questions
What is the exact order number and product type?
The exact order number is 6ES7321-1BP00-0AA0, a SIMATIC S7-300 digital input SM 321.
How many digital inputs does it have?
It has 64 digital inputs, isolated from the backplane bus by an optocoupler and arranged in groups of 16.
Which front connection components are required?
Cable 6ES7392-4Bxx0-0AA0 and terminal blocks 6ES7392-1xN00-0AA0 are required.
What lifecycle information is supplied?
The supplied lifecycle information is Product cancellation.
