Product Description
Product Overview
| Parameter | Details |
|---|---|
| Part Number | 6ES7321-1BP00-0AA0 |
| Product Name | SIMATIC S7-300 Digital Input Module SM 321 |
| Application | Digital signal acquisition for industrial automation and process control systems, suitable for monitoring switches, sensors, and binary signals in high-density applications |
| Compatibility | SIMATIC S7-300 series PLC; integrates with S7-300 CPUs, ET 200M distributed I/O, and backplane-powered setups |
| Function | Provides 64 isolated digital inputs for reliable status monitoring and control in large-scale systems |
Functional Specifications
| Parameter | Details |
|---|---|
| Number of Inputs | 64 (isolated in groups of 16) |
| Input Type | Digital inputs, 24 V DC, sink/source (IEC Type 1) |
| Supply Voltage | Rated value (DC): 24 V; Range: 20.4 V to 28.8 V |
| Input Current | Typical: 7 mA; Maximum: 15 mA |
| Cable Length | Maximum: 1000 m screened/unshielded cable |
| Operating Temperature | 0°C to 60°C (horizontal/vertical mounting); -20°C to +60°C derating |
| Storage Temperature | -40°C to +70°C |
| Dimensions | Width: 40 mm; Height: 125 mm; Depth: 120 mm |
| Weight | Approximately 0.25 kg |
| Protection Rating | IP20 |
| Certifications | CE mark; CSA approval; UL approval; cULus |
| Standards Compliance | IEC 61131-2; EN 61000-6-4 (EMC emissions); EN 61000-6-2 (EMC immunity) |
Ordering Information
| Parameter | Details |
|---|---|
| Part Number Configuration | 6ES7321-1BP00-0AA0 (SM 321, 64 DI, 24 V DC, 3 ms response time, sink/source) |
| Available Options | Variants for different input counts (e.g., 6ES7321-1BL00-0AA0 for 32 DI) or high-speed inputs |
| Customization | Extended temperature range or specific certifications available upon request |