Description
Product Overview
The Emerson 5X00481G01 is the OCR1100 main processor module for the Ovation distributed control system. It executes real-time control logic, PID loops, point database management, and handles communications between Ovation I/O racks, operator stations and external systems. This processor runs control applications for boiler, turbine and balance-of-plant processes in power generation and large process plants. OEM production has ended; available stock consists of surplus or refurbished tested replacement units for Ovation OCR1100 controller racks.
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | 5X00481G01 |
| Manufacturer | Emerson (Westinghouse Ovation) |
| Module Type | OCR1100 Controller Processor |
| Onboard Memory | 8MB RAM, 4MB non-volatile flash |
| Communication Ports | Dual 10/100Mbps Ethernet, RS485 serial port |
| Backplane Supply | 24VDC |
| Power Draw | 7W typical, 9W max |
| Isolation | Galvanic isolation between Ethernet/serial and control backplane |
| Operating Temperature | -20°C to 70°C |
| Storage Temperature | -40°C to 85°C |
| Humidity | 5%–95% non-condensing |
| Mounting | Ovation OCR1100 controller rack slot |
| Weight | 560g |
Engineer Notes
- This processor fits exclusively into the OCR1100 controller rack. It cannot be used with older Ovation CPU generations such as R1120.
- Front panel LEDs indicate power, controller run/stop state, Ethernet link activity and system fault alarms. Common faults include flash memory corruption, firmware mismatch and backplane contact degradation.
- Dual Ethernet ports support redundant network connections to Ovation operator and historian nodes. Configure IP addressing and network redundancy before commissioning.
- The RS485 port supports Modbus RTU for third-party device integration. Use shielded twisted pair cable and install termination resistors at bus endpoints.
- Apply ESD controls during handling. De-energize rack power before extraction or insertion. After replacement, load the site control database, verify firmware revision, and perform controller cold/warm restart validation.
- Redundant controller pairs require matching firmware versions on both primary and standby processors. Mismatched firmware prevents proper switchover.
Pre-Shipment Test Protocol
- Visual inspection: Check PCB assembly, edge connector, front panel LEDs and housing for bent pins, corrosion or component damage.
- Continuity and isolation test: Verify isolation between communication circuits and Ovation backplane.
- Functional bench test: Install module in OCR1100 test rack, load reference control project, confirm logic execution, point scanning and Ethernet/serial communications.
- Redundancy test: When paired with a standby processor, force primary/standby switchover and confirm bumpless transfer.
- Fault simulation: Simulate network disconnection and flash read/write checks, confirm module logs appropriate diagnostic alarms.
- Power cycling: Cycle 24VDC backplane power 10 times, confirm processor boots correctly and resumes control logic.
- Save test logs and photos for QA records.
Buyer FAQ
Q: Can I swap 5X00481G01 with other Ovation CPU modules? A: Only for OCR1100 racks. It is not backward compatible with R1120 or earlier Ovation controller hardware. Confirm rack type and firmware revision before cutover.
Q: Does the module ship preloaded with site control logic? A: No. Control database and firmware must be downloaded from site engineering workstation after installation.
Q: Is this new original Emerson factory stock? A: OEM production has stopped. Available units are surplus or fully refurbished tested stock. We offer a 12-month warranty on tested units.
Q: Are Ethernet cables and rack backplane included? A: Ethernet patch cords and OCR1100 rack hardware are not included unless explicitly noted on your quote. Confirm bundle components at order placement.
Start Chat
Send an Email
