32 Digital Inputs
Provides 32 digital input channels for SIMATIC S7-300 automation systems, enabling high-density signal acquisition.
Technical specifications, features, applications and purchasing information.
| Brand | SIEMENS |
| Model Number | 6ES7321-1BL00-0AA0 |
| Product Category | PLC Module |
| Product Family | SIMATIC S7-300 |
| Module Type | SM 321 Digital Input Module |
| Number of Inputs | 32 |
| Input Voltage | 24 V DC |
| Input Characteristic | IEC 61131, Type 1 |
| Input Signal '1' | 13 to 30 V |
| Input Signal '0' | -30 to +5 V |
| Input Current (Signal '1') | 7 mA typical |
| Electrical Isolation | Yes, optoisolator |
| Front Connector | 40-pole |
| Power Loss | 6.5 W typical |
| Cable Length (Shielded) | 1000 m maximum |
| Cable Length (Unshielded) | 600 m maximum |
Provides 32 digital input channels for SIMATIC S7-300 automation systems, enabling high-density signal acquisition.
Designed for 24 V DC input signals with IEC 61131 Type 1 input characteristic.
Inputs are electrically isolated from the backplane bus via optoisolator for reliable operation.
Uses a 40-pole front connector for secure and organized wiring connections.
Channels are isolated in groups of 16 for flexible wiring and diagnostics.
We support online purchase of the SIEMENS 6ES7321-1BL00-0AA0 PLC Module. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
What is the SIEMENS 6ES7321-1BL00-0AA0? The 6ES7321-1BL00-0AA0 is a SIMATIC S7-300 SM 321 digital input module with 32 inputs.
How many digital inputs does this module have? The module has 32 digital inputs.
What is the input voltage? The input voltage is 24 V DC.
What is the input characteristic? The input characteristic is Type 1 according to IEC 61131.
Are the inputs isolated? Yes, the inputs are electrically isolated via optoisolator, with channels isolated in groups of 16.
What connector type is required? The module requires a 40-pole front connector.
What is the maximum shielded cable length? The maximum shielded cable length is 1000 m.
What is the typical power loss? The typical power loss is 6.5 W.
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