Product Description
Product Overview
| Parameter | Details |
|---|---|
| Part Number | 820-0757 |
| Product Name | WESDAC D20 S DNP I/O Module |
| Application | Substation automation and control for data acquisition, I/O processing, and logic operations in power distribution systems |
| Compatibility | Compatible with GE WESDAC D20 series RTUs, including D20ME processors, D.20 link peripherals, and DNP3 interfaces |
| Function | Provides DNP3 protocol-based I/O for SCADA integration, substation monitoring, and control of digital inputs/outputs |
Functional Specifications
| Parameter | Details |
|---|---|
| I/O Type | 8 digital inputs (bipolar, supports positive/negative ground systems) |
| Voltage Rating | Configurable for contact wetting (internal or external supply, fused) |
| Communication Protocol | DNP3 over RS-485; supports D.20 link for daisy-chaining up to 31 peripherals |
| Operating Temperature | 0°C to 50°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions | Standard Eurocard size (approximate: 100 mm x 160 mm x 20 mm) |
| Weight | Approximately 0.5 kg |
| Power Supply | Provided via D.20 link cable (5 V DC, low power consumption) |
| Protection | Fused wetting supply, ESD protection |
| Certifications | CE marked; suitable for substation environments (UL, CSA compliant) |
| Standards Compliance | IEC 61850 for substation automation; API 670 for related protection |
Ordering Information
| Parameter | Details |
|---|---|
| Part Number Configuration | 820-0757 (WESDAC D20 S module with DNP3/RS-485 interface) |
| Available Options | DNP I/O variants (e.g., 507-0301 for digital input); coated for harsh environments |
| Customization | Firmware for specific DNP3 profiles or extended I/O configurations available upon request |