Product Overview
Technical Summary
| Product designation | SIMATIC S7-300, digital input SM 321 |
|---|---|
| Digital inputs | 16 |
| Input voltage | AC/DC; 24 V to 48 V DC and 24 V to 48 V AC |
| Input characteristic | IEC 61131 type 1 |
| Front connector | 40-pin |
| Potential separation | Between channels and between channels and backplane bus; optocoupler |
Key Features
- Product designation: SIMATIC S7-300, digital input SM 321; product cancellation.
- Digital inputs: 16 isolated digital inputs with an IEC 61131 type 1 input characteristic curve.
- Input voltage: AC/DC; rated value 24 V DC or 24 V AC, with 24 V to 48 V permissible range for DC and AC.
- Connection: Required 40-pin front connector.
- Potential separation: Digital inputs have potential separation between the channels and between the channels and the backplane bus; the latter uses an optocoupler.
Frequently Asked Questions
Which specifications distinguish Siemens 6ES7321-1CH00-0AA0?
This code identifies a SIMATIC S7-300 SM 321 digital input module with 16 isolated digital inputs, AC/DC input voltage, and a required 40-pin front connector.
What input voltage does 6ES7321-1CH00-0AA0 use?
The input voltage is AC/DC. The rated value is 24 V DC or 24 V AC, with a permissible range from 24 V to 48 V for DC and AC.
What connector is required for this module?
A 40-pin front connector is required.
What details are needed for a quotation?
Confirm the complete order number 6ES7321-1CH00-0AA0, the required quantity, and the destination.
