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- GE WESDAC D20S Substation Controller
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GE WESDAC D20S Substation Controller
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- Part Number: WESDAC D20S
- Brand: General Electric
- Type: Substation Controller
- Dimensions: 4x18.5x12.7cm
- Country of Origin: USA
- Barcode: 8537101190
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Additional Specifications
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وصف المنتج
The GE WESDAC D20S, also cataloged as the D20S Substation Controller, operates as a dedicated hardware component for executing localized automation algorithms and managing data collection within high-voltage substation networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | D20S |
| Brand | GE (General Electric / Wescom) |
| Series | WESDAC / D20 Series |
| Origin | United States (US) |
| Weight | Configuration dependent (Varies based on card layout and module population) |
| Dimensions | Standard 19" rack-mountable chassis assembly |
| Operating Temp | -20 to +70 deg C (-4 to +158 deg F) standard substation envelope |
| Power Consumption | Input options: 20-60 VDC, 100-300 VDC, or 85-264 VAC configuration paths |
| CPU Architecture | 32-bit microprocessor processing core |
| Flash Memory | 2 MB flash application memory |
| SRAM | 1.5 MB static random-access memory (volatile data registers) |
| NVRAM | 512 KB non-volatile random-access memory |
| BootROM | 1 MB integrated boot read-only memory |
| Serial Interfaces | 7 RS-232/485 serial ports |
| I/O Bus Interface | 2 D.20 Link HDLC ports for dedicated I/O module connection |
| Network Infrastructure | Optional Ethernet port allocation with redundancy support |
| I/O Module Capacity | Supports scaling up to a maximum of 120 distributed D20 I/O modules |
| Compliance Standards | EN 61000-6-2 (Immunity), EN 61000-6-4 (Emission) industrial metrics |
GE Industrial Control and Serial Coordination
- Backplane Bus Communication Velocity Licences: The 32-bit microprocessor orchestrates real-time tracking loops over the integrated dual HDLC D.20 Link paths. This interface scans up to 120 peripheral I/O modules, translating physical signal shifts into structured data words within predictable, sub-millisecond bus cycle intervals.
- Profinet / EtherNet/IP Deterministic Networks: Outfitted with 7 onboard RS-232/485 serial ports and optional Ethernet bridges, the module transforms raw asynchronous telemetry fields into deterministic protocol arrays. It compiles real-time system data across its 1.5 MB SRAM and 512 KB NVRAM blocks, enabling simultaneous multi-protocol data delivery to upstream SCADA host computers.
Frequently Asked Questions
Q: How does the D20S handle data integrity verification within its internal volatile storage matrices?
A: The 32-bit architecture runs continuous hardware-level cyclic redundancy checks (CRC) and memory parity validation routines across the 1.5 MB SRAM block. If a memory cell data error or parity exception manifests during calculation execution, the CPU flags the mismatch in the diagnostic database and can trigger an immediate failover switch if an optional redundant processor chassis is physically online.
Q: Can the 7 serial ports be hot-configured or wired while the controller is executing live substation automation loops?
A: Yes, serial communication lines may be connected or disconnected without halting processor execution. However, changing port configurations (such as baud rates or protocol types) in the system parameters requires downloading a modified configuration via the GE software suite, which clears and reinitializes the active serial port buffers.
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