Technical Summary
| Product type | SIMATIC S7-300, digital input SM 321 |
|---|---|
| Variant | spare part |
| Number of digital inputs | 16 |
| Type of input voltage | DC |
| Input voltage, rated value | 24 V |
| Load voltage L+, rated value (DC) | 24 V |
| Input current for signal "1", typ. | 7 mA |
| Power loss, typ. | 3.5 W |
| Required front connector | 20-pin |
| Isolation tested with | 500 V DC |
Key Features
SIMATIC S7-300 digital input SM 321
Digital input module for the SIMATIC S7-300 series.
Digital input module for the SIMATIC S7-300 series.
16 isolated digital inputs
Provides 16 DI with potential separation between the channels and the backplane bus.
Provides 16 DI with potential separation between the channels and the backplane bus.
24 V DC sourcing input
Type of input voltage is DC with rated value 24 V.
Type of input voltage is DC with rated value 24 V.
1x 20-pole front connector
Connection method uses a required front connector with 20-pin.
Connection method uses a required front connector with 20-pin.
Status indication LED
Status indicator digital input (green): Yes.
Status indicator digital input (green): Yes.
Applications
24 V DC digital signal input
Used for receiving 24 V DC sourcing input signals on 16 digital inputs.
Used for receiving 24 V DC sourcing input signals on 16 digital inputs.
Frequently Asked Questions
What is Siemens 6ES7321-1BH50-0AA0?
It is a SIMATIC S7-300 digital input SM 321 spare part.
How many digital inputs does 6ES7321-1BH50-0AA0 have?
It has 16 digital inputs.
What input voltage does 6ES7321-1BH50-0AA0 use?
It uses DC input voltage with a rated value of 24 V.
What connection does 6ES7321-1BH50-0AA0 require?
It requires a 20-pin front connector.
