GE DS200SLCCG1A LAN Communications Card

الوصف

The GE DS200SLCCG1A is a specific revision of the LAN Communication Card (¹$\text{SLCC}$), an essential component within the GE Mark V Speedtronic Turbine Control System.²

Its primary function is to manage and facilitate Local Area Network (³$\text{LAN}$) communications for the main drive or exciter control system, ensuring reliable data transfer between the controller and other network devices.⁴

Key Features and Role

• System Integration: The board is a $\text{VME}$ standard card that plugs into the $\text{VME}$ rack. It communicates with the system’s main processor (often the $\text{Drive Control Processor}$ or $\text{DCP}$ on an $\text{SDCC}$ card) using dedicated memory ($\text{Dual-Ported RAM}$ or $\text{DPR}$).
• Networking: The G1 variant, including the ⁵$\text{DS}200\text{SLCCG1A}$, provides the circuitry to support GE’s proprietary DLAN (Drive LAN) and ARCNET communication protocols.⁶ These are critical for communication between the control units and higher-level plant control systems or operator interfaces.

   

• Processor: It features a dedicated LAN Control Processor ($\text{LCP}$) to handle the complex communication tasks, offloading this burden from the main turbine control processor. The ⁷$\text{LCP}$‘s software is typically stored on two removable ⁸$\text{EPROMs}$ (⁹$\text{U}6$ and ¹⁰$\text{U}7$), which must often be transferred when replacing the board.¹¹

   

• Diagnostics: The board includes a connector (¹²$\text{KPPL}$) for an optional Programmer Module (often a 16-position alphanumeric display and keypad) to access system settings, error codes, and diagnostic information locally.¹³

   

• PCB Coating: The “G” in the part number indicates it uses the Normal Style PCB coating (standard protection), in contrast to the H-series which have a heavier conformal coating.

Part Number Breakdown (DS200SLCCG1A)