Description
The 5X00226G03 is an industrial hardware component engineered for the Ovation Distributed Control System (DCS), originally developed by Westinghouse and maintained by Emerson Process Management. This component belongs to the legacy Q-Line module framework, which continues to provide reliable, real-time control, data acquisition, and signal conditioning for critical utility infrastructure, power generation plants, and water treatment operations.
Commercial Availability & Terms
- Condition: New Original (Factory Sealed Surplus) or Refurbished (Fully Tested and Certified)
- Warranty: 12-Month Comprehensive Industrial Automation Warranty
- Availability: In Stock / Subject to Prior Sale
- Standard Lead Time: Ships within 1–2 business days via global express couriers
- Pricing Note: Price is highly dependent on system lifecycle status, component obsolescence, and current regional warehouse allocations. Contact our engineering sales desk for a formal, time-bound quotation.
Technical Specifications
Technical Note: Because the 5X00226G03 covers specific input/output sub-types within the legacy Q-Line registry, always verify the exact circuit schematic, trace layout, and daughtercard configuration against your plant’s original loop drawings before field deployment.
| Parameter | Value / Specification |
| DCS System Compatibility | Westinghouse / Emerson Ovation Control Network |
| Module Family | Q-Line Hardware Architecture |
| Part Grouping | 5X00226 Series (G03 Variation Tier) |
| Backplane Interfacing | Standard Q-Line card-edge connector footprint |
| Power Distribution | Draws operating current directly from the rack power supply bus |
| Circuit Construction | Multi-layer PCB featuring conformal coating for industrial insulation |
| Operating Temperature | 0 to +60 °C (+32 to +140 °F) continuous ambient range |
| Storage Temperature | −40 to +85 °C (−40 to +185 °F) envelope |
Field Integration & Architectural Constraints
When installing or hot-swapping the 5X00226G03 inside an active Ovation Q-Line crate, several engineering parameters must be followed:
- Group (G03) Configuration Matching: The
G03suffix specifies a distinct electronic layout, component rating, or specialized firmware block on the board. Replacing aG01orG02card with aG03card must be cleared by engineering, as mismatched group numbers can alter signal tolerances or timing constants, leading to diagnostic dropouts on the controller. - Card-Edge Alignment and Ingress: Legacy Q-Line crates rely on structural card guides to align the module’s gold-plated edge connectors with the backplane receptacle. Insert the module firmly but smoothly; forcing a misaligned card can bend the backplane pins or score the PCB traces, creating an intermittent open circuit.
- Cabinet Thermal Balancing: Q-Line racks pack modules tightly together, generating localized heat. Verify that the cabinet’s bottom fan trays are fully functional and that the air filters are clear. Excessive heat buildup around the 5X00226G03 will accelerate component aging and cause thermal drift in analog calculation paths.
Frequently Asked Questions
What is the primary difference between Westinghouse Q-Line and newer Ovation I/O modules?
The Q-Line represents a legacy, rack-based architecture utilizing large-format circuit boards with edge connectors. Modern Ovation I/O modules feature a much smaller, DIN-rail mountable footprint with integrated electronic keying and localized diagnostics. The 5X00226G03 is used to maintain and support existing legacy enclosures without requiring a costly rewrite of the system wiring.
Does this module support Online Insertion and Removal (OIR)?
While the physical hardware can sometimes tolerate extraction under power in specific configurations, it is highly recommended to follow plant safety guidelines. Pulling a core Q-Line card while active can disrupt the local bus segment, potentially driving adjacent channels into an unknown state or triggering a controller failover. Always drop the associated branch power or verify loop safety before pulling the card.
How do I troubleshoot a “Module Missing” or communication fault LED on this card?
First, perform a visual check on the card faceplate status LEDs. If the error persists, extract the card (following safety protocol) and clean the gold-plated card-edge fingers with an approved technical electronics contact cleaner to remove any localized oxidation or grease. Re-seat the card firmly. If the diagnostic fault does not clear, check the backplane slot voltage to ensure the power supply bus isn’t sagging under the load.




