Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Emerson Ovation / Westinghouse Ovation |
| Model | 5X00226G02 |
| Product Type | I/O Interface Module |
| Series / Platform | Ovation |
| I/O Platform | OCR 400 |
| Mounting | Rack-mounted |
| Primary Function | I/O interface and controller-to-I/O communication |
| Weight | Approximately 0.75 lb / 0.34 kg |
| Part Status | Legacy / discontinued |
| Application | Ovation DCS process-control systems |
The strongest available catalog-style identification describes 5X00226G02 as an Ovation I/O Interface Module, with an approximate net weight of 0.75 lb. Another technical listing identifies it specifically as an Ovation OCR 400 I/O Interface Module.
Specification caution: Several secondary listings publish conflicting values for supply voltage, channel count, dimensions, and communication protocol. Those figures should not be treated as authoritative for procurement without the applicable Ovation hardware documentation. For this part, the safest baseline is the 5X00226G02 part number + OCR 400/Ovation platform + actual rack configuration.
Application Scenarios & Pain Points
A failed I/O interface can be frustrating because the field devices themselves may test perfectly. The problem can sit one layer higher: the controller is running, field wiring is intact, yet the rack is not exchanging I/O data as expected.
Typical Applications
- Ovation DCS I/O Racks: Used as an interface component within compatible Ovation OCR 400 hardware arrangements.
- Power Generation: Particularly relevant to legacy Ovation installations where boiler, turbine, balance-of-plant, or auxiliary process I/O remains on the existing DCS architecture.
- Legacy System Maintenance: Useful when a plant wants to repair a rack rather than undertake an immediate controller or I/O migration.
- Critical Spare Inventory: A tested spare can shorten troubleshooting when an interface module failure interrupts a large group of field signals.
Field Case:
A technician may initially suspect the controller after an entire I/O segment becomes unavailable. Before replacing the controller, check the interface module, rack connections, power rails, and I/O communication path. A loose backplane connection can produce symptoms that look remarkably similar to a failed module—especially after cabinet work.
5X00226G02
Related Products
- 5X00226G02 — The subject Ovation I/O Interface Module, associated with the OCR 400 I/O architecture.
- 5X00109G02 — Ovation analog input module used for field signal acquisition. It serves a different role from the 5X00226G02 interface layer and should not be treated as a substitute.
- 5X00499G01 — Related Ovation system module. Compatibility depends on the specific Ovation rack and application configuration.
- 5X00605G01 — Ovation input module intended for field signal acquisition. It complements the interface architecture rather than replacing the interface module.
- 5X00070G01 — Ovation analog input module. Useful for expanding or maintaining compatible signal-acquisition sections.
- 5X00594G01 — Ovation input card used at the field-I/O level. Its function is different from the rack interface role of 5X00226G02.
- 1X01046H01L1 — Ovation power-supply hardware used to support system modules. Power architecture must be checked separately when troubleshooting an I/O rack.
The Engineer’s Guide: Field Pitfalls to Avoid
⚠️ Do Not Treat 5X00226G02 as a Generic PLC I/O Card
The part is identified as an Ovation I/O Interface Module, not a universal analog or discrete I/O module.
How to avoid it: Confirm the Ovation rack type, controller arrangement, and neighboring modules before ordering.
⚠️ Watch for Conflicting Online Specifications
Some listings claim 120–240 VAC, 8 inputs/8 outputs, or MODBUS communication for this exact part number. Those figures conflict with other catalog records that identify it simply as an Ovation I/O interface module.
How to avoid it: Do not copy generic specifications into a purchase order. Use the physical nameplate and the plant’s approved Ovation hardware documentation.
⚠️ Do Not Ignore Backplane and Rack Connections
An I/O interface fault can actually originate from the rack, connector, power supply, or adjacent hardware.
How to avoid it: Before condemning the module, inspect connector seating, oxidation, bent contacts, rack power, status indications, and communication diagnostics. On an older cabinet, a close visual inspection of the connector pins can save a board replacement.
Frequently Asked Questions (FAQ)
What is Emerson Ovation 5X00226G02?
5X00226G02 is an Ovation I/O Interface Module, associated with the Ovation OCR 400 I/O architecture. It provides interface functionality between the DCS control architecture and the I/O subsystem.
Is 5X00226G02 an Emerson or Westinghouse part?
Both names can appear in documentation and inventory records. The part is associated with the Westinghouse Ovation heritage and the current Emerson Ovation product family.
For procurement, retain the complete 5X00226G02 identifier rather than relying on the brand name alone.
Is 5X00226G02 an analog input module?
Not according to the stronger catalog identification. It is described as an I/O Interface Module, rather than a dedicated analog-input card.
This distinction matters because replacing an interface module with a field-I/O card can leave the underlying rack communication problem untouched.
What should I verify before replacing 5X00226G02?
Check:
- Exact 5X00226G02 marking.
- Ovation controller model.
- OCR 400/rack configuration.
- Adjacent module types.
- Rack power status.
- Backplane connector condition.
- Existing diagnostic or fault indications.
- Hardware revision, if marked.
For a live plant, capture the installed configuration before removing the failed module.
Are the published voltage and channel specifications reliable?
Not consistently. Several secondary listings provide different values for voltage, channel count, dimensions, and communication protocol.
For that reason, I would not put a specific supply voltage, channel count, or MODBUS specification on a procurement document unless it is confirmed against the actual Ovation hardware documentation for the installed system.
How should I evaluate refurbished 5X00226G02 stock?
Ask for clear photographs of the actual module, including the 5X00226G02 label and revision markings. Then request evidence of:
- Rack-level functional testing
- Connector inspection
- Power-up verification
- I/O communication testing where practical
- Visual inspection for corrosion or heat damage
- Test report
- Warranty terms
For discontinued Ovation hardware, traceability and actual test evidence are more useful than a generic “tested” statement.
Is 5X00226G02 still a current-production module?
Available parts records classify 5X00226G02 as discontinued by the manufacturer.
That makes it a legacy procurement item. For a planned outage, confirm physical stock and testing status before scheduling the replacement; do not assume that an advertised quantity represents tested, immediately deployable inventory.
