{"product_id":"ge-wesdac-d20s-substation-controller","title":"GE WESDAC D20S Substation Controller","description":"\u003cp\u003eThe \u003cstrong\u003eGE WESDAC D20S\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eD20S\u003c\/strong\u003e Substation Controller, operates as a dedicated hardware component for executing localized automation algorithms and managing data collection within high-voltage substation networks.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eD20S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eGE (General Electric \/ Wescom)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eWESDAC \/ D20 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited States (US)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eConfiguration dependent (Varies based on card layout and module population)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard 19\" rack-mountable chassis assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C (-4 to +158 deg F) standard substation envelope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eInput options: 20-60 VDC, 100-300 VDC, or 85-264 VAC configuration paths\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCPU Architecture\u003c\/td\u003e\n\u003ctd\u003e32-bit microprocessor processing core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash Memory\u003c\/td\u003e\n\u003ctd\u003e2 MB flash application memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSRAM\u003c\/td\u003e\n\u003ctd\u003e1.5 MB static random-access memory (volatile data registers)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNVRAM\u003c\/td\u003e\n\u003ctd\u003e512 KB non-volatile random-access memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBootROM\u003c\/td\u003e\n\u003ctd\u003e1 MB integrated boot read-only memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Interfaces\u003c\/td\u003e\n\u003ctd\u003e7 RS-232\/485 serial ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Bus Interface\u003c\/td\u003e\n\u003ctd\u003e2 D.20 Link HDLC ports for dedicated I\/O module connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Infrastructure\u003c\/td\u003e\n\u003ctd\u003eOptional Ethernet port allocation with redundancy support\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Module Capacity\u003c\/td\u003e\n\u003ctd\u003eSupports scaling up to a maximum of 120 distributed D20 I\/O modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompliance Standards\u003c\/td\u003e\n\u003ctd\u003eEN 61000-6-2 (Immunity), EN 61000-6-4 (Emission) industrial metrics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eGE Industrial Control and Serial Coordination\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplane Bus Communication Velocity Licences:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfinet \/ EtherNet\/IP Deterministic Networks:\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the D20S handle data integrity verification within its internal volatile storage matrices?\u003c\/p\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 7 serial ports be hot-configured or wired while the controller is executing live substation automation loops?\u003c\/p\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e","brand":"General Electric","offers":[{"title":"Default Title","offer_id":47894167158974,"sku":"WESDAC D20S","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/screenshot_2026-06-26_09-50-23_73a124a7-4956-4e48-8020-88dbb6949a82.png?v=1782723007","url":"https:\/\/www.autooiltech.com\/ar\/products\/ge-wesdac-d20s-substation-controller","provider":"AutoOilTech Limited","version":"1.0","type":"link"}