GE DS200SLCCG1ABB LAN Communication Card

الوصف

The GE DS200SLCCG1ABB is a specific revision of the LAN Communication Card (¹$\text{SLCC}$), which is an essential board for networking within the GE Mark V Speedtronic Turbine Control System.²

Its core function is to provide the hardware and processing required for the main controller (Drive or Exciter) to communicate across the industrial network, particularly GE’s proprietary protocols.

Key Features and Function

• Networking Role: As a communication card, the $\text{SLCC}$ handles the complex task of transmitting and receiving data, control commands, and diagnostics. The G1 variant, including the $\text{ABB}$ revision, is known to include circuits that support both DLAN (Drive LAN) and ARCNET network standards.
• Processor: The board utilizes a dedicated LAN Control Processor (³$\text{LCP}$).⁴ This specialized processor manages network traffic, freeing up the main turbine control processor for critical control loops.

   

• Data Exchange: Communication between the $\text{LCP}$ and the main control processor is achieved via high-speed Dual-Ported RAM ($\text{DPR}$), allowing simultaneous access by both processors.
• Diagnostics: The card is equipped with a connection point for an optional Programmer Module (keypad/display), which allows maintenance personnel to access system diagnostics, error logs, and configuration parameters directly at the cabinet.
• Software Memory: The $\text{LCP}$‘s software is typically stored on two removable $\text{EPROMs}$ ($\text{U}6$ and $\text{U}7$). When replacing the physical card, these $\text{EPROMs}$ must often be transferred from the old board to the new one.
• PCB Coating: The “G” in the part number indicates it features the Normal Style PCB coating (standard industrial protection).

Part Number Breakdown (DS200SLCCG1ABB)