Key Features
- SIMATIC S7-300 digital input module: SM 321 digital input module for the SIMATIC S7-300 range.
- 32 isolated digital inputs: Provides 32 DI with isolation between the channels and the backplane bus via optocoupler.
- 24 V DC input voltage: Uses DC input voltage with a rated value of 24 V.
- 1x 40-pole front connector: Requires a 40-pin front connector for connection.
- Product cancellation: Lifecycle status is Product cancellation.
Technical Summary
| Product type | SIMATIC S7-300 digital input SM 321 |
|---|---|
| Channel count | 32 DI |
| Input voltage | 24 V DC |
| Input voltage range | 20.4 V to 28.8 V |
| Input signal 0 | -30 to +5 V |
| Input signal 1 | 13 to 30V |
| Typical input current | 7 mA |
| Power loss, typ. | 6.5 W |
| Connection method | 1x 40-pole |
| Required front connector | 40-pin |
Applications
- 24 V DC digital input monitoring: Monitoring 24 V DC digital input signals in a SIMATIC S7-300 setup.
Frequently Asked Questions
What is Siemens 6ES7321-1BL00-0AA0?
It is a SIMATIC S7-300 SM 321 digital input module.
How many digital inputs does 6ES7321-1BL00-0AA0 provide?
It provides 32 digital inputs.
What input voltage does the module use?
The module uses 24 V DC input voltage.
What connector is required for 6ES7321-1BL00-0AA0?
A 1x 40-pole front connector is required.
What lifecycle status is listed for this part?
Product cancellation.
