Configured for deterministic controller execution in Mark VI VME‑based turbine control networks, the GE IS215UCVEH2AF (IS215UCVEH2A VME board) provides direct physical/electrical execution. It performs processor‑level task management, Ethernet communication, and backplane coordination for real‑time control logic.
Hardware Specifications
Parameter
Specification
Model
IS215UCVEH2AF
Brand
GE
Origin
USA
Series
Mark VI
Product Type
VME Board
Number of Channels
6
Temperature
-30 to 65 deg C
Size
8.6 cm wide x 16.2 cm high
Processor
Intel Celeron 300 MHz
DRAM
32 MB
Compact Flash
16 MB or 128 MB
L2 Cache
128 KB
NVRAM
8 KB battery‑backed SRAM
Ethernet Interface
10BaseT/100BaseTX RJ‑45
COM Ports
COM1 diagnostic; COM2 serial Modbus
Core Performance
VME controller execution, Ethernet communication, serial I/O handling
Backplane Bus Communication Velocity and Firmware Flash Compatibility
GE Mark VI VME controllers maintain deterministic backplane bus communication velocity to synchronize logic execution, I/O scanning, and Ethernet messaging. The IS215UCVEH2AF supports firmware flash compatibility across UCVE variants, ensuring consistent boot behavior and toolbox configuration validation. During rack power‑up, the controller compares stored flash parameters with detected hardware; mismatches inhibit startup to prevent undefined VME states.
Frequently Asked Questions
Q: Can the IS215UCVEH2AF be replaced while the VME rack is energized? A: No. The rack must be powered down to avoid undefined backplane states and Ethernet initialization faults.
Q: Does changing the compact flash module affect controller operation? A: Yes. Flash modules store configuration, IP addressing, and firmware. Replacement requires reprogramming with a compact flash programmer.
Q: How does the controller validate hardware configuration at startup? A: The controller compares toolbox configuration parameters with detected hardware. Any mismatch prevents the controller from entering RUN mode.
Field Installation Guidelines
Power down the Mark VI rack before inserting or removing the controller.
Seat the board using uniform pressure to engage VME edge connectors.
Tighten captive screws to maintain retention under vibration.
Verify RJ‑45 Ethernet cabling and COM port connections before energizing.
Maintain shielded wiring practices for Ethernet to reduce noise on UDH networks.
Confirm RUN/FAIL indicators and validate toolbox configuration before enabling turbine operation.
