Product Core Brief
- Model: 5X00226G02
- Brand: WESTINGHOUSE (Emerson Ovation DCS platform)
- Series: Ovation IOIC remote I/O interface communication module family
- Core Function: Act as high-speed redundant communication bridge between Ovation main controllers and distributed remote I/O subracks to exchange analog/digital process data and diagnostic alarms over Ethernet backbones.
- Product Type: Single-slot hot-swappable controller chassis communication module (IOIC interface card)
- Key Specs: Dual 100 Mbps Ethernet ports | Redundant hot-standby failover | Conformal coated PCB | Backward compatible with 5X00226G01 ⚠️ EOL — limited surplus stock remaining
Product Introduction
The WESTINGHOUSE 5X00226G02 installs inside main Ovation controller chassis to manage all remote I/O node communication traffic across plant distributed architectures. It cannot operate standalone and requires pairing with OCR-series main controllers and 1C31179G01 MAU remote master modules at field subracks.This revision improves on the older 5X00226G01 with upgraded surge suppression components and extended high-temperature operating headroom. OEM field logging records a 56,000 hour MTBF under steady 50 °C cabinet runtime, matching top-tier Ovation communication hardware reliability.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Compatible Controller Chassis | Ovation OCR1100, OCR400 main controller racks; fits standard full-size I/O slots |
| Communication Ports | Dual independent 100BASE-TX Ethernet RJ45 (primary + redundant backup) |
| Deterministic Scan Latency | <10 ms full remote node I/O data poll across all connected subracks |
| Redundancy Support | Hot-standby dual-module pairing; automatic failover with <8 ms switch time |
| PCB Protection | Full conformal coating for moisture, dust, and mild corrosive cabinet environments |
| Backward Compatibility | Direct drop-in replacement for legacy 5X00226G01 without rack wiring changes |
| Auxiliary Operating Voltage | 24 V DC chassis backplane supply; 410 mA typical steady-state draw |
| Hot Swap Compliance | Ovation certified hot-swap; controller core logic remains active during card exchange |
| Status Indicators | Front panel Power OK, Comms Active, Link Fault, Redundancy Status LEDs |
| Mechanical Dimensions | 185 mm L × 30 mm W × 110 mm D |
| Net Unit Weight | 300 g |
| Continuous Operating Ambient Temp | -20 °C to +70 °C full rated throughput; no performance derate up to 60 °C |
| Storage Temperature Range | -40 °C to +85 °C, 5–95 % RH non-condensing |
| Integrated Protection Circuits | Ethernet port ESD surge clamping, backplane reverse polarity lockout, short-circuit bus isolation |
| Certifications | UL, CE, RoHS, EN61000 Class A industrial EMC filtering, power generation control standard qualified |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: Cross-reference serial numbers against Emerson Ovation OEM trace databases; inspect dual RJ45 port pins for bending, gold rack edge connectors for oxidation, conformal coating for chipping on PCB traces. Photograph the edge connector pinout for controller chassis wiring reference.
- Live Functional Test: Seat the unit into an OCR400 controller test chassis paired with multiple 5X00497G01 remote subracks loaded with DI/AI/AO personality cards; run a continuous 24-hour cyclic data exchange test across all remote nodes. Log Ethernet link stability with a Fluke 115 digital multimeter during the full duration.
- Electrical Parameter Test: Perform a 500 V Megger insulation resistance test between Ethernet communication circuits and module ground; pass threshold set at >10 MΩ. Verify automatic redundant port failover triggers within rated 8 ms window when primary cable is disconnected.
- Firmware Verification: Read and record factory IOIC firmware revision via Ovation controller engineering software; document default redundant bus timeout register settings for customer site reference.
- Final QC & Packaging: Wipe gold edge connectors to remove surface oxidation; seal the unit inside an anti-static foam bag, affix a dated QC Pass label listing all completed test metrics before rigid shock-resistant carton packing.
Replacement Pitfall Guide
❗ Revision Firmware Mismatch Risk: Older Ovation controller firmware revisions pre-v4.0 lack register mapping for the G02’s enhanced surge diagnostic bits. Installing the unit generates unrecognized network fault alarm bits that trip plant interlocks. Always cross-check controller firmware release notes before swap-out.❗ Ethernet Cable Shield Ground Misconfiguration Risk: Unshielded CAT5e trunk wiring run parallel to high-current generator excitation cabling injects EMI noise and triggers random remote node dropout. Use factory shielded Ethernet assemblies, terminate cable shield at only the controller cabinet ground terminal block.❗ Chassis Slot Partial Insertion Risk: Uneven seating creates high-resistance edge contact points that throttle remote I/O throughput and extend scan latency past 10 ms critical thresholds during turbine load transients. Push the card fully into the slot and engage both blue front latches to lock flush against the backplane.❗ Controller Chassis Power Headroom Miscalculation Risk: A fully populated OCR400 chassis with two redundant of these modules draws 1.9 A total from the cabinet VM310 24 V supply. Calculate total load with a mandatory 20% power margin to avoid voltage sag during peak remote I/O polling cycles.❗ Uncontrolled ESD Damage Risk: Dry central control room air creates static charge buildup. Touch a grounded anti-static mat for three full seconds before handling the slim gold edge connector; ungrounded contact destroys the low-tolerance Ethernet transceiver ASIC.Keep these in mind and you’ll cut 90% of rework time.
Compatibility Matrix & Benchmarks
Compatibility Matrix
- 5X00226G01 legacy IOIC communication module → 5X00226G02 : Direct — backward drop-in replacement, no chassis wiring or rack modifications required
- Ovation OCR400 / OCR1100 main controller chassis → 5X00226G02 : Direct — factory edge pinout natively matches chassis 24 V logic supply and proprietary controller bus routing
- 1C31179G01 MAU remote I/O master communication module → 5X00226G02 : Direct — IOIC card aggregates all remote node data from field MAU modules over redundant Ethernet backbone
- VM310 24 V cabinet auxiliary power supply → 5X00226G02 : Direct — regulated 24 V output falls within the module’s operating window without extra voltage conditioning
- CML40.2-SP-330-NA-NNNN-NW Rexroth SERCOS motion PLC → 5X00226G02 : Needs Adaptation — wire Ovation network fault dry contacts to PLC digital inputs, map remote I/O status registers via Modbus TCP polling
