Technical Summary
| Product function | Isochronous mode: Yes |
|---|---|
| Module type | Digital input SM 321 |
| Inputs | 16 |
| Input voltage | 24 V DC |
| Load voltage L+ | 24 V |
| Input current from backplane bus 5 V DC, max. | 110 mA |
| Power loss, typ. | 3.8 W |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Input voltage for signal "0" | -30 to +5 V |
| Input voltage for signal "1" | 13 to 30V |
| Input current for signal "1", typ. | 7 mA |
| Required front connector | 20-pin |
Applications
24 V DC digital signal acquisition
Capturing 24 V DC digital input signals through 16 isolated inputs.
Key Features
SIMATIC S7-300 digital input module
Digital input SM 321 for the SIMATIC S7-300 family.
16 isolated digital inputs
Provides 16 DI with isolation between the channels and backplane bus via optocoupler.
24 V DC input rating
Uses a 24 V DC input voltage with a rated value of 24 V.
20-pin front connector
Requires a 20-pin front connector for connection.
Product cancellation
Lifecycle status is Product cancellation.
Frequently Asked Questions
What is Siemens 6ES7321-1BH10-0AA0?
It is a SIMATIC S7-300 digital input SM 321 spare part.
How many digital inputs does 6ES7321-1BH10-0AA0 have?
It has 16 digital inputs.
What input voltage does 6ES7321-1BH10-0AA0 use?
The input voltage is 24 V DC.
What connector is required for 6ES7321-1BH10-0AA0?
A 20-pin front connector is required.
