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The GE DS200SLCCG4REG LAN Communications Card is an industrial printed circuit board (PCB) manufactured by General Electric, primarily for their Mark V Speedtronic Turbine Control System and associated drive or exciter applications.
This board’s function is critical for network connectivity in the control system.
Key Features and Role
- Part Type: LAN Communications Card (also referred to by the functional acronym SLCC).
- Application: Used in the control panels for GE’s Mark V series of gas, steam, or wind turbine control systems, as well as industrial drives and exciters.
- Core Function: It acts as the interface that enables the control processor (DCP) on the main drive control board (like the SDCC) to communicate over a Local Area Network (LAN) with other devices. This includes:
- Communication between redundant control modules (R, S, T in TMR systems).
- Data exchange with operator interfaces (HMIs), engineering workstations, and higher-level plant control systems (DCS).
- LAN Control Processor (LCP): The card is built around a dedicated LAN Control Processor (LCP) which manages all communication protocols and network traffic.
- Data Interfacing: It utilizes dual-ported RAM to ensure high-speed, independent, and simultaneous data exchange between the LCP and the main Drive Control Processor (DCP).
- Connectivity Group (G4): The G4 in the part number indicates a specific group or revision of the hardware. According to GE documentation for the SLCC family, the G4 version is typically distinct because it does not include the specialized circuitry for either the legacy DLAN or ARCNET networks, suggesting it is designed for a different, potentially later, standard of communication interface in Mark V systems.
- Revisions (
REG): The final letters,REG, represent the functional and artwork revisions of the board (e.g., Revision ‘R’, ‘E’, and ‘G’). These letters are vital for compatibility, ensuring that any replacement or repair matches the required specifications for a particular turbine control cabinet.
In essence, the DS200SLCCG4REG is the network gateway for one of the world’s most common industrial control platforms, ensuring the reliability and integrity of all data moving to and from the critical turbine or drive control systems.
