Product Description
Key Features
- Exact module identity: SIMATIC S7-300 SM 321 digital input module, order number 6ES7321-1BL00-0AA0.
- Digital input capacity: 32 isolated digital inputs with an IEC 61131 type 1 input characteristic curve.
- 24 V DC supply: Input and load voltage rated value: 24 V DC; permissible load voltage range: 20.4 V to 28.8 V.
- Front connection: Required front connector: 40-pin.
- Installation limits: Horizontal installation: 32 inputs max. up to 40 °C and 16 inputs max. up to 60 °C; vertical installation: 32 inputs max. up to 40 °C.
- Lifecycle data: Product cancellation.
Technical Summary
| Product identity | 6ES7321-1BL00-0AA0, SIMATIC S7-300 SM 321 digital input module |
|---|---|
| Digital inputs | 32 isolated digital inputs |
| Input voltage | 24 V DC rated value; signal "0": -30 to +5 V; signal "1": 13 to 30V |
| Load voltage | 24 V DC rated value; permissible range: 20.4 V to 28.8 V |
| Front connector | Required 40-pin front connector |
| Isolation | Between digital inputs and backplane bus: Yes; Optocoupler; isolation tested with 500 V DC |
| Lifecycle | Product cancellation |
Frequently Asked Questions
What order number should be confirmed for this Siemens module?
Confirm order number 6ES7321-1BL00-0AA0 and the SIMATIC S7-300 SM 321 identity.
How many digital inputs does 6ES7321-1BL00-0AA0 have?
It has 32 isolated digital inputs.
What connector is required?
A required 40-pin front connector.
What input voltage does the module use?
The rated input voltage is 24 V DC. Signal "0" is -30 to +5 V, and signal "1" is 13 to 30V.
What lifecycle information is supplied for this configuration?
The supplied lifecycle information is Product cancellation.
