The GE IS200VCRCH1B is a VCRC Digital I/O Control Card designed specifically for the Mark VI and Mark VIe turbine control systems. Engineered to process high-density digital input and output signals, this printed circuit board acts as a core interface between field discrete devices and the main control processor. Built with heavy-duty industrial components, the IS200VCRCH1B Digital I/O Card ensures rapid signal response, reliable communication across the VME backplane, and robust performance in demanding gas and steam turbine management environments.
Technical Specifications & Datasheet
- Brand: General Electric (GE / Alstom)
- Model: IS200VCRCH1B
- Series: Mark VI / Mark VIe Distributed Control System
- Product Name: VCRC Digital I/O Control Card
- Place of Origin: United States / Global Manufacturing
- Product Status: Active / Factory Original
- Dimensions: 203 mm x 127 mm x 25 mm
- Weight: 0.45 kg
- Power Consumption: 6.0 W (typical)
- Discontinuation Status: Supported Legacy Component
Parameter Configuration and Modification Methods
Configuring and adjusting operational parameters for the IS200VCRCH1B card is performed using the GE ToolboxST application software suite via an engineering workstation.
- Connection Setup: Connect the programming PC to the controller network interface to establish an online communication link with the Mark VI rack.
- Software Navigation: Open the ToolboxST configuration tool, locate the hardware configuration tree, and select the specific VCRC card slot to access its parameter registers.
- Parameter Adjustment: Modify digital input filtering times, state-change reporting intervals, and channel configuration attributes according to operational requirements.
- Download & Verify: Compile the updated configuration and download it to the controller. Verify that diagnostic status indicators show no hardware or communication faults.
Manual / Automatic Mode Switching
Operational control modes for digital I/O cards are managed automatically by the core control processor rather than manual switches on the board itself.
- Automatic Mode: The card operates continuously under system control, scanning digital inputs, executing logic routines, and updating digital outputs in real time without operator intervention.
- Manual Mode / Forced States: Technicians can use software forcing tools within ToolboxST to manually override specific digital inputs or outputs for diagnostic and commissioning purposes.
- Switching Procedure: Forcing or overriding digital points requires proper software security authorization and adherence to plant safety interlocks to prevent unintended equipment actuation.
Frequently Asked Questions (Q&A)
- Q: What is the primary function of the IS200VCRCH1B card?
- A: It serves as a digital input/output control card in the Mark VI system, processing discrete signals between field devices and the main processor.
- Q: Can this digital I/O card be replaced while the system is powered on?
- A: Hot-swapping circuit boards in a live Mark VI rack requires strict adherence to system-specific redundant core guidelines and safety protocols.
- Q: How does the card report hardware faults to the control system?
- A: It performs continuous internal diagnostics and communicates health status, fault logs, and point data across the VME rack backplane.
Recommended Alternative Models from GE
- GE IS200VCRC – Standard VCRC Digital I/O Card Variant
- GE IS200TBCIS1C – Discrete Input/Output Terminal Board
- GE IS200EPDMG1ACB – Exciter Power Distribution Module
- GE IS200DSPXH1AED – Digital Signal Processor Board
- GE IS200VRTCH1C – VME Read Termination Card
- GE IS200STAIH1AAA – Simplex Analog Input Board
- GE IS200SRTDH2AAA – RTD Input Terminal Board
- GE IS200TURAH1AAA – Turbine Regulation Terminal Board
- GE DS200TCQBG1B – Thyristor Control Board
- GE DS200PCCAG1ACC – Power Supply Controller Card
