Key Features
- 16 digital inputs: Provides 16 isolated DI for digital signal acquisition.
- 24 V DC input supply: Uses DC input voltage with a rated value of 24 V.
- Sourcing input: Configured as a sourcing input module.
- 20-pin front connector: Requires a 20-pin front connector.
- Optocoupler isolation: Potential separation between the digital inputs and the backplane bus is provided by an optocoupler.
Applications
- 24 V DC digital signal acquisition: Collects 24 V DC digital input signals in a SIMATIC S7-300 system.
- 2-wire sensor connection: Supports connection of 2-wire sensors with a permissible quiescent current up to 1.5 mA.
Technical Summary
| Digital inputs | 16 |
|---|---|
| Input voltage | DC |
| Input voltage, rated value | 24 V |
| Input current for signal "1", typ. | 7 mA |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Connection method | 20-pin |
| Potential separation between the channels and backplane bus | Yes; Optocoupler |
| Isolation tested with | 500 V DC |
Frequently Asked Questions
What is the Siemens 6ES7321-1BH50-0AA0?
It is a SIMATIC S7-300 digital input SM 321 module with 16 DI.
What input voltage does 6ES7321-1BH50-0AA0 use?
The input voltage is DC, with a rated value of 24 V.
What connector is required for 6ES7321-1BH50-0AA0?
A 20-pin front connector is required.
What are the main installation and size details for this module?
The module is 40 mm wide, 125 mm high, 120 mm deep, and has an approximate weight of 200 g.
