🔹 Product Overview
The GE IS215UCVGH1A C is a VME controller board associated with the GE Mark VI Speedtronic control platform. It is identified with the VMIVME-7666-111000 and 350-017666-111000 C part references and is designed for installation in a VME rack as a single-slot controller. Current listings identify the unit as a GE VME Controller Card, with a listed weight of approximately 450 g and U.S. country of origin.
The UCVG controller family provides the processing and communication functions required by the control system. The controller communicates with I/O boards through the VME bus and uses QNX as its real-time operating system. Depending on the hardware/software configuration, the controller provides Ethernet and serial communication interfaces for engineering, operator, and control-system communications.
This particular listing is marked Used, so the exact board revision, installed memory, firmware/software configuration, and physical condition should be confirmed from the actual nameplate and board before installation.

📋 Technical Specifications
| Parameter | Details |
|---|---|
| Brand | GE / General Electric |
| Model | IS215UCVGH1A C |
| Product Type | VME Controller Card |
| Series | GE Mark VI / Speedtronic |
| Related Part Number | VMIVME-7666-111000 |
| Additional Part Number | 350-017666-111000 C |
| Controller Family | UCVG |
| Rack Interface | VME |
| Board Configuration | Single-slot controller |
| Processor | Intel Ultra Low-Voltage Celeron 650 MHz* |
| Memory | 128 MB SDRAM + 128 MB Flash* |
| Operating System | QNX real-time operating system |
| Ethernet | 2 × 10BaseT/100BaseTX RJ-45* |
| Serial Interfaces | COM1 / COM2 |
| Power | +5 VDC primary supply; exact rack configuration should be verified |
| Operating Temperature | 0 to 70°C* |
| Weight | Approx. 450 g |
| Country of Origin | United States |
| Condition | Used |
*Published specifications for the IS215UCVGH1A UCVG family can vary by hardware revision/source. Verify the actual board label and revision before applying these values to a specific unit.
⚙️ Key Features
- Single-slot VME controller architecture
- Designed for GE Mark VI control-system applications
- QNX real-time operating system
- VME bus communication with associated I/O boards
- Ethernet connectivity for control and engineering networks
- COM interfaces for serial communications and setup
- Front-accessible status and communication interfaces
- Associated with VMIVME-7666-111000 and 350-017666-111000 C identification numbers
- Suitable as a spare or replacement controller where the existing system configuration matches
The UCVG controller family can support separate Ethernet network functions. Published technical references describe LAN1 for UDH/configuration and peer-to-peer communication, while LAN2 can be configured for a separate logical network such as Modbus or private EGD applications.
🏭 Typical Applications
The board is generally encountered in GE Speedtronic Mark VI control environments, including:
- Gas turbine control systems
- Steam turbine control systems
- Land-based power generation
- Aeroderivative turbine systems
- Balance-of-Plant control
- Industrial turbine automation
- VME-based control cabinets
- Existing Mark VI system spare-parts inventories
Software loaded onto the controller is application-specific and may differ between steam, gas, land-marine aeroderivative, and BOP systems.
🔧 Installation & Maintenance Notes
Before installation, compare the replacement board against the existing controller carefully. Check the complete part number, revision letter, board labels, connector arrangement, and installed hardware.
- Shut down and isolate the VME rack according to the site’s maintenance procedure.
- Confirm the existing controller identification and software configuration.
- Inspect the replacement PCB for bent pins, damaged connectors, corrosion, or loose components.
- Install the board into the correct VME slot.
- Confirm all retaining hardware is properly secured.
- Restore system power and check controller LEDs and startup behavior.
- Verify Ethernet and serial communications.
- Confirm the controller configuration through the applicable GE control-system engineering tools.
- Check communication with the associated I/O and control networks before returning the system to service.
For a used controller, firmware and application software should not be assumed to match another UCVG board simply because the part number is similar.
🔍 Identification References
When sourcing this board, the following markings may help identify the correct unit:
- IS215UCVGH1A C
- VMIVME-7666-111000
- 350-017666-111000 C
- UCVG H1A
- GE Industrial Systems
- General Electric
- GE Fanuc Embedded Systems
- Assy. No. 332-017666-100C
These identification references are found across current product listings and supplier records for the same UCVG controller family.
❓ Frequently Asked Questions
Q: Is IS215UCVGH1A C a PLC CPU?
A: It is better described as a VME controller/processor board for the GE Mark VI control architecture rather than a conventional standalone PLC CPU.
Q: What is VMIVME-7666-111000?
A: It is a related hardware identification number associated with the UCVG VME controller. The same product family is also referenced by 350-017666-111000 C.
Q: Does this board use QNX?
A: Yes. Published technical references identify QNX as the real-time operating system used by the UCVG controller family.
Q: Can any IS215UCVGH1A replace this board?
A: Not automatically. Check the complete part number, revision, firmware/application configuration, and existing Mark VI hardware before replacement.
Q: What is the listed weight?
A: Current listings specify approximately 450 g for this particular part/reference.
🔗 Related GE Controller Models
The following are related UCVG/Mark VI controller references or nearby controller variants, but they should not be treated as automatic drop-in substitutes:
- IS215UCVGH1A
- IS215UCVGH2A
- IS215UCVGM01A
- IS215UCVGM02A
- IS215UCVGM03A
- IS215UCVGM04A
- IS215UCVGM05A
- IS215UCVGM06A
- IS215UCVGM07A
- IS215UCVGM08A
The UCVGM variants can add communication capabilities such as additional Ethernet, Profibus, ISBus, or DLAN depending on the specific configuration, so the exact suffix matters when selecting a replacement.
📦 Purchasing & Compatibility Notes
For a replacement order, provide the complete board number and revision, not just “UCVG.” The recommended identification is:
IS215UCVGH1A C / VMIVME-7666-111000
If the board will replace an existing controller, compare the original unit’s faceplate, PCB markings, firmware, memory configuration, and communication requirements before installation.
For used equipment, the actual physical condition and test status should be confirmed separately from the manufacturer’s historical specifications.






