GE IS200VMCIH2BCC VME Communication Interface Board

The GE IS200VMCIH2BCC, also cataloged as the IS200VMCI VME Communication Interface Board, operates as a dedicated hardware component for high-speed data transmission and signal processing within GE Mark VI Turbine Control Systems. The chassis-mounted board establishes a direct physical and electrical interface loop to manage network traffic across gas turbine, steam turbine, and modular industrial automation platforms.

Hardware Specifications

Industrial Control & Drive Communications

• Backplane Bus Communication Velocity Matrix The board interfaces directly with the Mark VI VME rack control stratum, executing synchronous parallel data cycles across the backplane bus. The module architecture decodes high-frequency network packets and converts them into stabilized 12-bit registers, ensuring zero-latency variable updating parallel to the master turbine controller processing loops.
• I/O Density Scaling and Isolation Management The 16-channel processing block leverages an internal input impedance network rated at 100 kΩ to sample wide-range 0-250 VDC external signals. To guard the VME core logic against high-voltage switching spikes, the module enforces a 2500 VAC dielectric isolation barrier, containing electrical noise and preventing localized ground loop propagation between field screw terminals and the shared control network.

Frequently Asked Questions

Q: What technical sequence occurs if the module encounters an out-of-range input signal?

A: The on-board processing logic compares real-time values against pre-defined safety bounds. If an input steps beyond the calibrated 0-250 VDC window, the board flags an overrange diagnostic bit, routes an execution error code across the VME backplane to the host controller, and logs a fault via the Ethernet network link.

Q: Can the IS200VMCIH2BCC board be extracted from the VME rack while the turbine control system is live?

A: No, standard hot-swap functionality is restricted by the parallel VME backplane architecture. Removing or seating the 0.5 lbs board while the rack is powered introduces transient current fluctuations and data packet truncation, which will cause adjacent active slots to fault and can trigger a complete turbine trip sequence.