Description
Product Introduction
The GE IS215VCMIH2C is a VME Bus Master Controller Board. It belongs to the Mark VI series. General Electric designed it for Speedtronic control systems. This board manages communication between the controller and I/O boards. It also links to the IONet system control network. The VCMI board acts as the VME bus master in control and I/O racks. It handles IDs for all boards in the rack. This part is critical for system uptime. Keep a spare to avoid downtime.
Functional Description
The IS215VCMIH2C supports simplex and TMR system setups. Three IONet ports provide channels R, S, and T. Each I/O rack requires one VCMI board. The board works with local and distant I/O racks. A compact system mounts all I/O in the VME control rack. Larger systems use multiple distant I/O racks. All I/O channels are identical for points and boards.
Key Features at a Glance
32-bit processor for fast execution
12 channels for flexible I/O control
Dual-port memory improves data handling
10 ms frame rate ensures real-time performance
0-20 mA analog output current range
Three IONet 10Base2 Ethernet ports with LEDs
One RS-232C serial port for diagnostics
Run, Fail, Status, Reset LEDs for quick status checks
Reset push button on front faceplate
Conformal coated PCB for harsh environments
Technical Specifications
General Information
Brand: General Electric
Part Number: IS215VCMIH2C
Series: Mark VI
Product Type: VME Bus Master Controller Board
Functional Abbreviation: VCMI
Country of Origin: United States
Manual: GEH-6421M
Hardware Specifications
Board Type: 6U
Processor: 32-bit
Memory: Dual-port memory
Number of Channels: 12
Analog Output Current: 0-20 mA
Frame Rate: 10 ms
Power Requirement: +5 V dc
Physical & Environmental
Width: 10.16 cm or 17.8 cm (check variant)
Height: 33.02 cm
Operating Temperature: -30°C to +65°C
Shipping Weight: 1 lb
Network & Communication
IONet Ports: 3 (10Base2 Ethernet)
Serial Port: 1 (RS-232C)
System Version: 3 (for TMR systems)
LED Indicators: Run, Fail, Status, Reset, 1,2,4,8, TX/RX/CD
Compatibility
Works with GE Mark VI turbine control systems
Supports gas, steam, and wind turbines
Compatible with VME backplane and expansion racks
Use with backup and triple-redundant modules
Certifications & Standards
Manufactured under GE quality control
Conformal coated PCB for moisture and dust resistance
Industrial grade for -30°C to +65°C operation
Follows VME bus standards
Installation Guide
Insert the board into a standard 6U VME rack.
Secure the board with front panel screws.
Connect IONet cables to R, S, T ports.
Attach RS-232C cable for local diagnostics.
Apply +5 V dc power only.
Verify LEDs show normal status after power-up.
Debugging & Maintenance
Use Run and Fail LEDs for quick health checks.
Press the reset button to reboot without cycling power.
Monitor Status LED for communication errors.
Access diagnostic data via the RS-232C port.
Replace the board if Fail LED stays on.
No special tools needed for replacement.
Diagnostic Capabilities
The IS215VCMIH2C provides onboard diagnostics through LEDs and the serial port. It reports IONet link status per channel. The board detects VME backplane errors. It also monitors board temperature and power levels. Use application software to read detailed fault logs.
Typical Applications
Gas turbine control systems
Steam turbine automation
Wind turbine drive assemblies
Remote I/O racks in power plants
Triple-modular redundant (TMR) control setups
VME-based industrial automation
Package Contents
IS215VCMIH2C board (1 unit)
Anti-static packaging
No cables or screws included
Warranty & Shipping
Warranty: 12 months from invoice date
Repair service: 3-7 days typical
Availability: In stock
Shipping carriers: FedEx, UPS, DHL
Fast dispatch within 24 hours
Frequently Asked Questions (FAQ)
What is the difference between IS215VCMIH2 and IS215VCMIH2C?
The C revision includes functional changes. No physical appearance changes exist. Performance is improved.
Can this board work in a TMR system?
Yes. It supports triple-modular redundant (TMR) configurations. System version 3 is required.
What happens if the Fail LED turns on?
The board detected an internal fault. Try pressing the reset button. Replace the board if the light stays on.
How do I know if the IONet is working?
Check the TX/RX/CD LEDs on each port. Blinking indicates normal traffic. No light means no link.
Do I need a spare board?
Yes. This is a critical system component. A spare prevents long downtime during failures.
What temperature range can this board handle?
It operates from -30°C to +65°C. Suitable for most industrial environments.
Is the PCB coated for humidity protection?
Yes. The board has a conformal coating. This resists moisture, dust, and mild chemicals.
What software works with this board?
Use GE Mark VI application software. It communicates execution data with the main processor.
Where can I find the manual?
The manual number is **GEH-6421M**. Search online or contact GE.
How do I select between VCMI and other communication boards?
Choose **VCMI** for VME bus master control and IONet networking. Use other boards for simpler I/O only. For TMR systems, always pick VCMI. For single rack small systems, VCMI still works but may be overkill. Contact us for help.
Selection Guide
Start with your system type: TMR or simplex.
For TMR, you must use IS215VCMIH2C.
For simplex, this board also works well.
Check your rack count. One VCMI per I/O rack.
Verify temperature range matches your site.
Confirm +5 V dc power is available.
Order a spare for critical turbines.
Buy only from trusted sources to avoid counterfeit boards.
Contact Information
For inquiries, please contact us:
Phone: +86 158 8020 0923 (Click to chat on WhatsApp)
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