GE DS200SIOBH1ABA VME Stand I/O Board

الوصف

The GE DS200SIOBH1ABA is a specific, revised model of the SC2000 VME I/O Board (SIOB), primarily used in the GE Mark V Speedtronic Turbine Control System and associated drive/control subsystems ($\text{SC}2000$ or $\text{UC}200\text{V}$).

Its purpose is to serve as an auxiliary $\text{I/O}$ expansion board, significantly increasing the system’s capacity to interface with field devices beyond the standard controller limits.

Key Features and Design

The $\text{H1}$ designation in this part number indicates a specific hardware construction difference from the earlier $\text{G1}$ models.

• System Integration: It is a $\text{VME}$ standard board that plugs into a single slot in the $\text{VME}$ rack and connects to the $\text{VME}$ $\text{P1}$ connector. It handles 16-bit data transfers and uses standard $\text{VME}$ addressing protocols.
• I/O Expansion: It facilitates connecting additional field devices, such as sensors and actuators, by linking to external terminal boards ($\text{TBA}$ or $\text{TBB}$) via ribbon cables plugged into its faceplate connectors ($\text{J1}$ and $\text{J2}$).
• Protection (H-Designation): The “H” in $\text{SIOBH1}$ signifies that the board typically features a conformal coating. This is a protective, chemically applied layer that shields the electronics from environmental contaminants like moisture, dust, and corrosive vapors often present in industrial settings.
• Configuration: The board includes numerous user-configurable components for system tuning:
  • Three Switch Blocks (18 switches total) for setting addressing and operating modes.
  • Approximately 20 Configurable Jumpers for parameter adjustments (e.g., test modes, signal scaling).
• Diagnostic Indicator: A single $\text{LED}$ on the faceplate confirms when the board is actively being accessed by the $\text{VME}$ bus, indicating communication status.

Part Number Breakdown (DS200SIOBH1ABA)