Product Core Brief

• Model: 5X00481G01
• Brand: EMERSON (Ovation / Westinghouse)
• Series: Ovation DCS
• Core Function: Processor card for the Ovation OCR1100 controller assembly, paired with the 5X00226G03 IOIC card. Executes modulating and sequential control strategies, performs data acquisition, and interfaces with the Ovation network and I/O subsystems.
• Product Type: Processor Card / Controller Module
• Key Specs: OCR1100 Compatible | Paired with 5X00226G03 | Up to 32,000 Points | 10ms-30s Cycle Speed
• Condition: New Original / New Surplus

Key Technical Specifications

• Card Type: Processor Card
• Function: Executes control strategies, data acquisition, and network communication for OCR1100 controller
• Compatibility: Ovation DCS; specifically used in OCR1100 controller assemblies, paired with the 5X00226G03 IOIC card
• Control Capacity: Up to 32,000 points; executes up to 5 simultaneous process control tasks
• Cycle Speed: 10ms to 30 seconds; pre-defined 1s and 100ms tasks plus 3 user-selectable speeds
• Control Functions: Continuous (PID) control, Boolean logic, advanced control, special logic and timing, data acquisition, sequence of events (1ms resolution), cold junction compensation
• Standards: IEC 61131-3 compliant; Achilles Level 1 certified
• Redundancy: Supports bumpless automatic failover between redundant controllers
• Storage: Non-volatile memory for application software, point database, configuration, and tuning constants
• Operating Temperature: 0°C to 55°C, non-condensing (typical control room conditions)
• Installation: Plug-in module for OCR1100 controller rack; paired with IOIC card
• Diagnostics: Front-panel LEDs and advanced controller diagnostics via Ovation HMI

 

Product Introduction

The 5X00481G01 is a Processor Card for the Emerson Ovation DCS, specifically designed for use in OCR1100 controller assemblies where it is paired with the 5X00226G03 IOIC card. This card serves as the computational brain of the OCR1100 controller, executing control strategies, performing data acquisition, and managing communication with the Ovation network and I/O subsystems.

The OCR1100 controller, built around the 5X00481G01 processor card and 5X00226G03 IOIC card, is one of Ovation’s flagship controller models for mission-critical applications. It can originate up to 32,000 points and execute up to five simultaneous process control tasks at cycle speeds ranging from 10 milliseconds to 30 seconds. Two of these tasks use pre-defined cycle speeds (1 second and 100 milliseconds), while the other three are user-selectable, allowing engineers to optimize control execution timing for different process requirements.

The processor card supports a comprehensive range of control functions including continuous PID control, Boolean logic, advanced control algorithms, special logic and timing functions, data acquisition, sequence of events processing with 1-millisecond resolution, and cold junction compensation for thermocouple inputs. It stores application software, point databases, configuration information, and operating tuning constants in non-volatile memory, ensuring that critical data is retained during power cycles.

The 5X00481G01 is redundancy-ready, supporting bumpless automatic failover between redundant controller pairs. This is essential for continuous-process environments such as power generation (steam/gas turbine islands, balance-of-plant), water and wastewater treatment, and petrochemical applications where unplanned downtime carries significant operational and financial consequences. The card is IEC 61131-3 compliant and Achilles Level 1 certified, meeting industry standards for reliability and safety.

In a typical OCR1100 controller assembly, the 5X00481G01 processor card works alongside the 5X00226G03 IOIC card and power supply to form a complete controller unit. The processor handles control algorithm execution while the IOIC card manages communication with the I/O subsystem—scanning up to 8 I/O branches with up to 8 modules per branch for a maximum of 128 local Ovation I/O modules per IOIC card. This distributed processing architecture is what gives Ovation its fast loop response times and high reliability.

The OCR3000 is the successor to the OCR1100, combining the processor and IOIC modules into a single module. However, the 5X00481G01 remains widely deployed in existing Ovation installations and is supported as a legacy-compatible component for brownfield replacements and expansions.

QA & Testing SOP

Processor cards are the most critical component in a controller assembly—failure here can take down an entire controller and its associated I/O. Here’s our verification procedure:

1. Visual & Anti-Counterfeit Inspection: We inspect the PCB for cold solder joints around the processor IC, memory chips, and backplane connectors. We verify the OEM holographic label and cross-check the silkscreen part number against the Ovation master parts list. Counterfeit processor cards in the surplus market may have degraded processors or memory that cause intermittent controller faults or data corruption.
2. Backplane & Connector Verification: The card is seated into a dedicated Ovation test rack. We inspect the backplane connector pins for bends or corrosion—bent pins on the processor side prevent the card from communicating with the IOIC card; bent pins on the power side prevent the card from booting.
3. Controller Boot Test: We install the 5X00481G01 in a complete OCR1100 controller assembly (with 5X00226G03 IOIC card and power supply) and verify the controller boots successfully. We confirm the processor card is recognized by the controller firmware and appears in the Ovation diagnostic screen without fault codes.
4. Control Execution Test: We load a test control strategy and verify the processor executes PID loops, Boolean logic, and sequence control at the expected cycle speeds. We confirm the processor can handle the configured number of control tasks without exceeding cycle time limits.
5. I/O Communication Validation: We connect I/O modules to the controller and verify data flow in both directions. We inject analog signals and toggle digital inputs, then confirm the values appear correctly in the Ovation engineer station. We also write output commands from the engineer station and verify they reach the field I/O modules.
6. Redundancy Switchover Test (if applicable): For redundant controller configurations, we verify the processor card functions correctly during a controller switchover event, ensuring bumpless failover with no data loss or communication interruption.
7. Anti-Static Packaging: Passed units are sealed in static-shielded bags with desiccant, then double-boxed for transit.

Installation Pitfalls & Guide

Processor cards are the most sensitive and critical component in a controller assembly. Here’s what to watch for:

• ❗ Correct IOIC Pairing: The 5X00481G01 is specifically paired with the 5X00226G03 IOIC card in OCR1100 controller assemblies. Using it with a different IOIC card (e.g., 5X00226G01, G02, or G04) will result in compatibility issues. Always verify the processor-IOIC pairing in your Ovation system documentation before installation.
• ❗ Controller Slot Placement: The 5X00481G01 must be installed in the correct slot within the OCR1100 controller assembly. Installing it in the wrong slot will prevent the controller from booting. Always reference the OCR1100 hardware configuration diagram for correct slot placement.
• ❗ Firmware Compatibility: The processor card’s firmware revision must be compatible with the 5X00226G03 IOIC card’s firmware and the Ovation system version. A firmware mismatch can cause the controller to fail to boot or cause intermittent communication errors. Verify firmware compatibility in your Ovation system documentation before installation.
• ❗ Backplane Connector Integrity: The processor card’s backplane connector carries critical communication signals between the processor and IOIC card. Even a single bent pin can cause communication failures. Handle the card by the edges only, and never force it into the slot. If you encounter resistance, remove the card and inspect the connector pins before retrying.
• ❗ Controller Downtime Planning: Replacing a processor card requires removing the controller from service. For non-redundant controllers, this means a process shutdown. For redundant controllers, you can replace the processor on the standby controller first, then perform a controlled switchover. Always follow your plant’s controller replacement procedure and have a rollback plan.
• ❗ Configuration Backup: Before removing the controller, always backup the current controller configuration, point database, and control strategies from the Ovation engineer station. If the replacement processor card causes issues, you need to be able to restore the original configuration quickly.

4-Step Replacement Guide:

1. Pre-Install: Backup the current controller configuration, point database, and control strategies from the Ovation engineer station. If the controller is redundant, verify the standby controller is healthy and in sync. Place the controller in a safe state per your plant’s procedure.
2. Removal: Power down the controller assembly per procedure. Carefully disengage any retaining clips and pull the faulty processor card straight out of the controller slot. Do not twist or rock the card. Inspect the slot for debris or damaged pins before installing the replacement.
3. Install: Align the new processor card with the slot guides and slide it in firmly until the backplane connector seats fully. Engage any retaining clips. Verify the card is seated in the correct slot and paired with the correct IOIC card (5X00226G03) per the OCR1100 hardware configuration diagram.
4. Power-on Test: Power up the controller assembly. Monitor the Ovation diagnostic screen for the controller boot sequence. Verify the processor card is recognized without faults and all status LEDs indicate normal operation. Perform an I/O communication test: inject signals at field devices and verify they appear in the Ovation engineer station, and write output commands to verify they reach the field devices. If the controller is redundant, perform a controlled switchover test to verify bumpless failover.

 

Technical FAQ

Q: What’s the difference between 5X00481G01 and 5X00481G04? A: Both are processor cards used in OCR1100 controller assemblies but paired with different IOIC cards:

• 5X00481G01: Paired with 5X00226G03 IOIC card
• 5X00481G04: Paired with 5X00226G04 IOIC card

The G01 and G04 variants are functionally similar processor cards but are paired with different IOIC card revisions. They are not universally interchangeable—you must match the processor card to your specific IOIC card per the OCR1100 hardware configuration.

Q: Can I use this card in an OCR400 or OCR161 controller? A: No. The 5X00481G01 is specifically designed for the OCR1100 controller assembly. The OCR400 uses different processor cards (e.g., 5X00241G02 paired with 5X00226G01/G02), and the OCR161 uses a different architecture (e.g., 5X00105G14). Always verify compatibility with your specific controller model in the Ovation system documentation.

Q: What happens if the processor card fails? A: If the processor card fails, the entire controller assembly goes offline. For non-redundant controllers, this means all control functions handled by that controller stop, and all associated I/O points go to their fail-safe states. For redundant controllers, the standby controller takes over automatically with bumpless failover. However, the failed controller must be replaced promptly to restore redundancy.

Q: Is this card compatible with Ovation 4.0? A: The 5X00481G01 was originally designed for legacy Ovation systems and remains supported on Ovation 4.0 as a legacy-compatible component for existing OCR1100 controller assemblies. For brownfield replacements, it is a direct drop-in replacement. If you’re unsure, verify compatibility with your specific Ovation version and controller model in the system documentation.

Q: What is the warranty on surplus units? A: We provide a 12-month warranty from the date of delivery on both new original and new surplus stock. This covers manufacturing defects, DOA failures, and any control execution or integration issues discovered during commissioning. It does not cover damage from improper installation—such as bent backplane pins, incorrect slot placement, incorrect IOIC pairing, firmware incompatibility issues, or ESD damage from handling without proper grounding.

Want me to pull up the compatible power supply for the OCR1100 controller assembly? The 5X00416H01 we covered earlier is the one that pairs with this processor-IOIC combo.