Product Description
Product Details
| Parameter | Details |
|---|---|
| Manufacturer | Siemens |
| Model/Part Number | 6ES7321-1BH01-0AA0 |
| Description | SIMATIC S7-300, Digital Input Module SM 321, 16 DI, 24 V DC, Optically Isolated, Sink/Source |
Product Overview
| Parameter | Details |
|---|---|
| Part Number | 6ES7321-1BH01-0AA0 |
| Product Name | SM 321 DI 16x24V DC |
| Application | Standard digital input expansion for S7-300 PLCs in industrial automation, sensor interfacing, switch detection, and process control |
| Compatibility | S7-300 CPU (312_318); mounts in any I/O slot of CR 0_3; supports central and distributed (via ET 200M) configurations |
| Function | Provides 16 optically isolated digital inputs (24 V DC, sink/source); 3 ms filter, diagnostics, high immunity, and IEC Type 1 compliance |