GE DS200SIOBG1AAA SC2000 VME I/O Board

الوصف

The GE DS200SIOBG1AAA is a SC2000 VME I/O Board (SIOB) designed and manufactured by General Electric for use in the Mark V Speedtronic Turbine Control System and its associated subsystems like the SC2000 or UC200V.

Its primary function is to expand the Input/Output (I/O) capabilities of the VME-based control architecture, allowing the turbine control system to interface with more field devices, sensors, and actuators.

Key Features and Function

1. System Role and Installation

• Purpose: The SIOB is an auxiliary board that provides additional I/O capacity when the standard controller $\text{I/O}$ is insufficient for a complex application.
• Interface Standard: It adheres to the VME (VersaModule Eurocard) standard, connecting to the common VME P1 connector and occupying a single slot in the VME rack.
• Data Transfer: It supports 16-bit data transfers and uses the standard $\text{I/O}$ address modifier type for communication with the main VME-based controller.

2. Connectivity and Configuration

• External Connections: The board features two $\text{I/O}$ connectors (J1 and J2) on its faceplate. These connectors attach via special cables to TBA (Terminal Board Assembly) or TBB terminal boards, which provide the screw terminals for external wiring to the field devices.
• Onboard Configuration: The board includes several user-configurable elements:
  • Three Switch Blocks: These typically contain six switches each (18 switches total) for setting board addresses or operating modes.
  • Configurable Jumpers: Approximately 20 jumpers are available for adjusting scaling, attenuation, or other hardware parameters to match the system’s specifications.

3. Diagnostics

• VME Access $\text{LED}$: A single $\text{LED}$ indicator on the faceplate lights up when the board is actively accessed by the VME control system, providing a visual check of communication activity.

Part Number Breakdown (DS200SIOBG1AAA)

The multiple trailing letters indicate that this is a late and highly refined revision of the original SIOB design: