Emerson 5X00226G03 OCR1100 DCS main controller, intermediate hardware revision supporting redundant bumpless switchover, executes PID and interlock logic, critical Ovation spare for power plants.

Product Overview

• Part No: 5X00226G03
• Brand: EMERSON / Westinghouse Ovation

• Category: OCR1100 Process Controller 5X00226G03 is an intermediate hardware revision of the OCR1100 main process controller for Emerson Ovation DCS. It serves as core processing unit for PID closed-loop control, boolean logic, sequence control and safety interlock algorithms. The module supports 1:1 redundant hot standby configuration with bumpless automatic failover upon primary controller fault. It is compatible with local Ovation I/O branches, Q-Line I/O and remote I/O nodes. Multiple Ethernet communication ports enable connections to operator stations, historians and third-party systems. Fanless low-power design ensures reliable long-term continuous operation. Built-in comprehensive self-diagnostics monitor hardware, memory and communication status continuously. Front panel LED indicators display running status, network activity and fault alarms. This version can be upgraded and replaced by 5X00226G04 with matching Ovation firmware. It is widely used as maintenance spare in thermal power and combined-cycle power plants.

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Core Features

• Fanless OCR1100 process controller, intermediate hardware revision for Ovation DCS
• Supports 1:1 redundant deployment with seamless bumpless automatic failover
• Executes closed-loop regulation, sequential control and equipment interlock algorithms
• Compatible with local Ovation I/O, Q-Line I/O and remote I/O nodes
• Multi-channel RJ45 Ethernet interfaces for system networking
• Low-power fanless architecture for stable 24/7 operation
• Comprehensive onboard diagnostics for hardware and communication fault detection
• Supports millisecond-level SOE sequence of events recording
• Standard plug-in rack design for convenient field replacement

• Compliant with strict industrial EMC standards for control room environments

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Technical Specifications

• Model: OCR1100, Part Number 5X00226G03
• Power Supply: 24 VDC nominal
• Maximum Power Consumption: 40 W
• Supported Local I/O: Up to 16 I/O branches, maximum 128 I/O modules
• Communication Interfaces: Multi-channel 10/100 Mbps Ethernet
• Operating Temperature: 0°C ~ +60°C
• Storage Temperature: -40°C ~ +85°C
• Humidity: 5%–95% non-condensing
• Mounting: Ovation standard controller rack installation

• Protection Class: IP20 when installed inside control cabinet

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Compatibility & Application

• Compatible with corresponding Ovation DCS firmware; interchangeable with 5X00226G01, 5X00226G02 and upgraded 5X00226G04
• Supports Ovation standard I/O modules, Q-Line I/O and remote node interface modules
• Widely deployed in thermal power plants and combined-cycle power stations
• Applied for unit coordinated control, boiler and turbine regulation, auxiliary sequential control and safety interlock protection