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| Place of Origin: | Germany |
| Brand Name: | Siemens |
| Certification: | COO & COC |
| Model Number: | 6ES7321-1BL00-0AA0 |
6ES7321-1BL00-0AA0 Siemens High-performance 32-channel Digital Input Module 24VDC
The Siemens 6ES7321-1BL00-0AA0 is a high-performance 32-channel digital input module belonging to the renowned SIMATIC S7-300 programmable controller series. This module is designed for reliable acquisition and reading of DC switching signals from field devices in industrial automation environments. With its high channel density, excellent electrical isolation, and powerful diagnostic capabilities, it is ideal for applications handling large numbers of digital inputs, significantly improving the integration and efficiency of control systems.
High-Density Channel Configuration: 32 digital input points are integrated into a standard S7-300 module width, greatly saving installation space in the control cabinet and reducing per-point costs.
Core Features
| Product Model | 6ES7321-1BL00-0AA0 |
| Module Type | Digital Input (DI) |
| Number of Input Channels | 32 |
| Rated Input Voltage | 24V DC (nominal) |
| Backplane Bus Connection | Via front connector |
| Electrical Isolation | Between channels and backplane bus (500V AC) |
| Diagnostics | Supported (Detects sensor power loss for 8 channels per group) |
| Required Front Connector | 40-pin, e.g., 6ES7392-1AJ00-0AA0 |
| Power Consumption (Backplane Bus) | Typical 85 mA |
| Required Load Power (L+) | Typical 6 mA (all channels), approximately 0.2 mA per channel |
Product details pictures
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