IS215UCVGH1AC
IS215UCVGH1AC
IS215UCVGH1AC
IS215UCVGH1AC
IS215UCVGH1AC

GE IS215UCVGH1AC | Mark VIe UCVG Controller, 650MHz Celeron

  • Model:​ GE IS215UCVGH1AC
  • Brand:​ GE (General Electric)
  • Series:​ Mark VI / Mark VIe (Speedtronic)
  • Core Function:​ Acts as a standalone or auxiliary controller with integrated local I/O and HMI interfaces (VGA/USB).
  • Product Type:​ UCVG Control Processor (Single-Slot VME)
  • Key Specs:​ 650 MHz Intel Celeron | 128MB SDRAM | SVGA/USB Front
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Part number: GE IS215UCVGH1AC
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Description

Product Introduction

The ​ is a UCVG​ series controller board within the GE Mark VI/VIe ecosystem. Unlike the standard UCVE(which is purely a computation/Voting engine), the UCVG​ variant is designed as a more integrated “General Purpose” controller.

This “H1AC” revision is a Single-Slot VME​ board that houses a 650 MHz Intel Celeron processor, 128 MB SDRAM, and 128 MB Flash. Its defining feature is the front-panel I/O: it includes SVGA (Video), Keyboard/Mouse, and USB ports, allowing technicians to connect a local monitor and peripherals directly to the controller for on-site diagnostics without a laptop. It handles turbine sequencing, data acquisition, and can communicate via dual Ethernet (IONet) and serial ports. It is commonly used in applications requiring local operator interaction or where a separate HMI PC is not desired .

IS215UCVGH1AC

IS215UCVGH1AC

Key Technical Specifications

  • System Role:​ UCVG (Universal Control – General Purpose w/ Graphics)
  • Processor:​ Intel Celeron (Ultra Low Voltage, ~650 MHz)
  • Memory:​ 128 MB SDRAM (Runtime), 128 MB Flash (Storage)
  • Form Factor:​ 6U VME (Single Slot)
  • Front Panel I/O:
    • SVGA Port​ (Video Output for local Monitor)
    • Keyboard / Mouse Ports​ (PS/2 or USB depending on rev)
    • USB Ports​ (For peripherals/flash drives)
    • 2x Ethernet​ (IONet/Control Network)
    • Serial Ports​ (RS-232, COM1/COM2)
  • Backplane:​ VME64 (P1/P2 Connectors for Rack Communication)
  • Power Req:​ +5 V DC (Typical VME draw), +12V (for USB/Video)
  • Indicators:​ System OK, Active, Network Link/Act LEDs
  • Temp Range:​ -20 °C to +70 °C (Operational)
  • OS:​ QNX (Custom GE Image)

 

Quality Control Process (Engineer’s Perspective)

  1. Incoming Verification:​ Match serial to manifest. Inspect 96-pin VME fingers​ for wear. Crucially, check the VGA and USB ports​ on the faceplate for bent pins (very common during rack access).
  2. Boot & Video Test:​ Seat in a VME rack with 5V/12V. Connect a VGA monitor to the front. The GE boot logo must display​ during POST. If the screen is blank but “OK” LED is green, the GPU section may be faulty.
  3. Peripheral Check:​ Plug a USB keyboard in. Enter BootMon​ (usually Ctrl+X during boot). Navigate the menu to confirm keystrokes are registered—verifies the I/O controller hub is alive.
  4. Ethernet Stress:​ Patch Port 1 to a laptop. Ping flood at 1500-byte packets; 0% loss​ is required. The “H1AC” revision typically has robust magnetics.
  5. Final QC & Packaging:​ Clean VME fingers with isopropanol. Bag in rigid ESD foam. Label “QC Passed – Video/USB/Net OK”.
IS215UCVGH1AC

IS215UCVGH1AC

Replacement Pitfall Guide

❗ UCVG vs UCVE (Critical Selection):​

  • UCVE​ (IS215UCVEH2Aetc.) = Headless (No Video/USB). Pure processing/Voting.
  • UCVG​ () = Has Video/USB ports.

    Do not swap a UCVEfor a UCVGH1ACwithout checking the project file (.tcf). The system may expect a headless controller; forcing a UCVG might require BIOS/Config changes to disable “Wait for Video” timeouts that can delay turbine startup.

❗ Local Monitor Dependency:​ If the site relies on the front SVGA port​ for local turbine status (e.g., in a remote pump house), simply swapping “any” controller won’t work. You must​ use the UCVGtype. A standard UCVEhas no video output capability.

❗ Application Download:​ Like all Mark VIe controllers, swapping hardware requires downloading the Control Application (.appl)​ and Configuration (.cfg). Because this board has more I/O (USB/Video), a mismatch between the old .tcffile and the new “H1AC” hardware definition canflag “Hardware Mismatch” warnings in ToolboxST.

❗ 12V Rail Requirement:​ Unlike basic VME cards, the video/USB features on UCVGdraw power from the +12V​ backplane rail. In older Mark VI racks where the +12Vsupply is disabled or faulty, the board may boot (5V OK) but USB ports won’t work​ and the monitor stays black.

❗ VME Seating:​ 6U board with faceplate ports. Ensure the faceplate screws are secured; the weight of VGA/USB cables can torque the board out of the P1/P2 backplane connectors over time, causing “VME Bus Error”.

Keep these in mind and you’ll cut 90% of rework time.

 

Compatibility Matrix & Benchmarks

  • ​ → GE IS215UCVEH2A: Functional Substitute (with caveats)— UCVG has added Video/USB. Can run the same logic apps, but physical I/O differs. Use UCVG if local HMI is needed.
  • ​ → Mark VIe VME Rack: Direct— Slides into standard Controller Slots (Carrier required if not integrated faceplate).
  • ​ → Standard VME CPU (Non-GE): Incompatible— Requires GE QNX image and ToolboxST handshake.
  • Boot Time:​ ~30-45s (Incl. Video Init)
  • Video Res:​ Typically 1024×768 (Industrial Panel compatible)
  • Peripheral Power:​ +12V DC (From Backplane)

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