Description
GE IS215UCCCM04A Mark VI Controller Board – Central CPU Module for Turbine and Process Control
The GE IS215UCCCM04A is a UCCC series controller board used in Mark VI systems to execute application logic, manage I/O communications, and interface with HMI/plant networks. From my experience, this module is typically the “brains” of a Mark VI control rack—handling sequencing, protection logic, and data exchange over IONet and the VME backplane. The IS215 prefix indicates conformal coating, which seems to be why these boards hold up well in humid or dusty cabinets.
You might notice that the M04A hardware revision is favored by maintenance teams who want a drop-in replacement with mature firmware support. In many cases, it’s the lowest-risk way to restore a rack after a controller fault without reworking the rest of the system.
Order Placement Process and Guarantees
- Warranty: 365 days
- Lead time: 1 week if in stock; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express options: FedEx, UPS, DHL
- Packing & ESD: Anti-static packaging and shock-resistant cartons, typically tested before dispatch
Key Features
- Central controller for Mark VI – Executes turbine and process control logic, handles alarms/sequence, and coordinates I/O.
- Conformal-coated (IS215 build) – Added environmental protection for harsher cabinets or higher humidity.
- IONet/Ethernet connectivity – Typically dual 10/100 Ethernet for I/O network and HMI/plant network segregation.
- Backplane VME communications – High-reliability bus interface to I/O and system services in the rack.
- Redundancy-ready – Suitable for simplex, dual, or TMR architectures when configured at the system level.
- Service diagnostics – Front LEDs and maintenance port (by revision) simplify commissioning and fault tracing.
- Firmware/toolset compatibility – Works with ControlST/Toolbox toolchains commonly used on Mark VI fleets.
- Drop-in replacement – In most cases, supports field replacement without cabinet rewiring.
Technical Specifications
| Brand / Model | GE Mark VI / IS215UCCCM04A (UCCC Controller Board) |
| HS Code | 8538.90 (Parts for electrical control equipment) |
| Power Requirements | Supplied via rack backplane; typically uses 5 VDC and 3.3 VDC rails (from VME/Mark VI power supply) |
| Form Factor / Size | 6U VME-style board; approx. 233 × 160 mm; weight ~0.7 kg (varies slightly by revision) |
| Operating Temperature | Typically 0 to +60°C inside a conditioned control cabinet (non-condensing humidity) |
| Signal I/O Types | No direct field I/O; digital data over VME backplane and Ethernet to I/O subsystems/HMI |
| Communication Interfaces | VMEbus; dual 10/100Base‑T Ethernet (IONet / HMI); RS‑232 maintenance port (by hardware revision) |
| Installation Method | Rack-mounted in Mark VI VME chassis; plugs into backplane; secured by captive faceplate screws |
Application Fields
- Gas and steam turbine control (startup sequencing, combustion/steam valve control, protection)
- Balance-of-plant coordination (auxiliaries, fans, pumps, and interlocks)
- Oil & gas process trains where Mark VI racks are already deployed
- Industrial power generation and cogeneration units requiring deterministic control
Advantages & Value for Procurement
- Reliability in service – Conformal-coating and proven VME architecture help reduce nuisance trips in real plants.
- Compatibility – Designed for Mark VI racks; typically works with existing IONet topology and HMI nodes.
- Faster return-to-service – Drop-in replacement minimizes re-engineering when a controller fails.
- Lifecycle support – Mature firmware/tooling with wide field experience makes maintenance predictable.
- Cost control – Avoids the expense of a full platform upgrade when only the controller board is needed.
One thing I appreciate is how quickly teams can swap an IS215UCCCM04A during a planned outage. A maintenance supervisor told us they were back online in under two hours—most of the time was spent verifying IONet redundancy and loading the approved application image.
Installation & Maintenance
- Cabinet & environment – Install in a clean, ventilated control cabinet; maintain ambient temperature typically 0–60°C, non‑condensing.
- ESD & handling – Use an ESD strap; isolate power to the rack before insertion/removal; seat fully into the backplane and tighten faceplate screws.
- Wiring & networks – Verify IONet/HMI Ethernet segregation, correct IP addressing, and shielded CAT5e/6 cabling with proper grounding.
- Commissioning – Load the validated application, confirm firmware/toolset match, check front‑panel LEDs, and run basic loopback/health checks.
- Routine maintenance – Visually inspect connectors, clean dust with dry air, back up the application image, and schedule firmware updates when approved by site procedures.
Quality & Certifications
- CE-marked industrial control product (typical for Mark VI components)
- UL/CSA recognition commonly available on GE control modules
- Manufactured under ISO 9001 quality systems
- Warranty provided by us: 365 days
Related/Supporting Components (for planning)
- Mark VI VME rack and power supply modules (backplane provides 5 V/3.3 V rails)
- IONet industrial switches and shielded Ethernet patching
- Mark VI I/O packs and termination panels for field signals
- Engineering toolset PC with approved ControlST/Toolbox version
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