Westinghouse Ovation 1C31238H01 Base Cover

Technical Dossier

Product Details And Specifications

Westinghouse Ovation Series Technical Notes

The Evolution of Ovation Architecture

The Ovation platform was developed by Westinghouse Electric Corporation and subsequently managed through the Emerson Electric acquisition of the Process Control Division. The architecture has evolved through three distinct generations. The first generation (Ovation 1.x, mid-1990s) introduced the distributed I/O node concept with proprietary Ovation Network (OCN) communication. The second generation (Ovation 2.x, early 2000s) transitioned to Ethernet-based plant networks while retaining backward compatibility with first-generation I/O hardware — a critical design decision that extended the installed base lifecycle by over a decade. The third generation (Ovation 3.x, 2010s onward) introduced virtualized controller environments and IEC 61850 integration for substation automation. Throughout these transitions, the physical I/O module form factor — including base covers, terminal blocks, and backplane assemblies — remained largely standardized, meaning components such as the 1C31238H01 retain cross-generational compatibility across a wide range of installed systems. Sites running Ovation 1.x hardware in brownfield nuclear facilities represent the primary demand segment for this component category, as OEM support for first-generation hardware has entered end-of-life status.

Ovation Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly sourced components within the Westinghouse Ovation I/O and controller subsystem. Each entry reflects a distinct functional role within the Ovation node architecture.

Controller & Processor Modules

• 1C31197G01: Ovation Compact Controller, single-processor, primary control node for small process units.
• 1C31197G02: Ovation Compact Controller, redundant-processor variant, hot-standby failover configuration.
• 1C31116G01: Ovation Enhanced Controller, high-capacity scan rate, supports up to 5,000 I/O points per node.
• 5X00070G01: Ovation OCR400 Controller Module, Ethernet-native, Ovation 3.x platform primary CPU.

Analog Input (AI) Modules

• 1C31122G01: 16-channel Analog Input Module, 4–20 mA, HART-enabled, process variable acquisition.
• 1C31122G02: 16-channel Analog Input Module, ±10 VDC input range, thermocouple/RTD compatible.
• 1C31129G01: 8-channel High-Speed Analog Input, 1 ms scan rate, vibration monitoring applications.
• 5X00106G01: Ovation Analog Input Module, 32-channel, multiplexed, high-density I/O node configuration.

Analog Output (AO) Modules

• 1C31132G01: 8-channel Analog Output Module, 4–20 mA, loop-powered, valve positioner interface.
• 1C31132G02: 8-channel Analog Output Module, ±10 VDC, servo drive and actuator control.

Digital Input (DI) Modules

• 1C31142G01: 32-channel Digital Input Module, 24 VDC, dry contact and wet contact configurable.
• 1C31142G02: 32-channel Digital Input Module, 120 VAC, field device status monitoring.
• 1C31147G01: 16-channel Digital Input Module, isolated, high-voltage field interface, 240 VAC rated.

Digital Output (DO) Modules

• 1C31157G01: 16-channel Digital Output Module, relay contact, 2A per channel, motor starter interface.
• 1C31157G02: 32-channel Digital Output Module, solid-state, 24 VDC, high-cycle solenoid valve control.

Communication & Network Adapters

• 1C31169G01: Ovation Network Interface Module, OCN to Ethernet bridge, legacy node integration.
• 5X00095G01: Ovation PROFIBUS DP Master Module, field device network gateway.

Power Supply Modules

• 1C31234G01: Ovation I/O Node Power Supply, 24 VDC, 10A, redundant pair configuration.
• 1C31234G02: Ovation I/O Node Power Supply, 48 VDC variant, telecom-grade installations.

Structural & Enclosure Components

• 1C31238H01: Base Cover, I/O module mechanical enclosure, backplane interface protection, field-replaceable.
• 1C31238H02: Base Cover, extended depth variant, accommodates high-density terminal block assemblies.

Quality Control for the Ovation Range

All Ovation modules and structural components processed by DriveKNMS undergo a standardized inspection and functional verification protocol prior to shipment. Controller and I/O modules are bench-tested using Ovation-compatible test fixtures that simulate live backplane communication, verifying OCN and Ethernet node registration, channel-level I/O accuracy (±0.1% FS for analog modules), and relay contact integrity (insulation resistance >100 MΩ at 500 VDC for digital output modules). Structural components including the 1C31238H01 Base Cover are inspected for mechanical deformation, connector pin integrity, backplane alignment tolerance, and locking mechanism function. Components exhibiting wear beyond OEM tolerance specifications are rejected and not offered for resale. All tested units are individually labeled with inspection date, technician ID, and test result reference number. ESD-safe packaging is applied to all electronic modules; structural components are shipped in anti-crush foam-lined cartons.