Description
- The Woodward 5466-1035 is a high-performance central processing unit (CPU) module designed for the MicroNet TMR (Triple Modular Redundant) and MicroNet Simplex control systems. Featuring the Freescale P1020 processor, this module serves as the “brain” of the system, executing complex control algorithms for large-scale steam turbines, gas turbines, and compressor sets. It is specifically engineered to handle the synchronized voting logic required in high-availability environments where a single point of failure cannot be tolerated.
Product Specifications
- Model Number: 5466-1035
- Manufacturer: Woodward
- Processor: Freescale P1020 (Dual Core)
- Memory: High-capacity DDR3 RAM and Non-volatile Flash
- Communication Interface: 3 Ethernet Ports (10/100/1000 Base-T), 2 Serial Ports (RS-232/RS-485)
- Real-Time Clock: Integrated with battery backup
- Backplane Interface: High-speed VME-based communication
- Operating Temperature: -20°C to +65°C
- Dimensions: Dual-slot width in a MicroNet chassis
- Weight: 1.5 kg (3.3 lbs)
- Country of Origin: USA
Application Fields
This CPU module is the gold standard for mission-critical industrial control, including:
- Utility-grade power generation control (Steam and Gas Turbines).
- Triple Modular Redundant (TMR) safety systems for oil and gas platforms.
- Complex load management and grid synchronization.
- Master station control for large-scale industrial engine plants.
Usage Instructions
The Woodward 5466-1035 must be installed in a MicroNet chassis that is compatible with the P1020 architecture. When installing in a TMR system, ensure that the module is placed in the designated CPU slot (typically Slot 1, 8, or 15 depending on the chassis layout). Use the Woodward AppManager software to configure the network settings and download the application Coder files. Because this module contains sensitive electronic components, always use an ESD (electrostatic discharge) wrist strap during handling. Ensure the module is fully seated into the backplane before tightening the front-panel screws to prevent intermittent communication errors.
Frequently Asked Questions (Q&A)
Q: Can this CPU module replace older MicroNet CPU models like the 5466-316? A: While the 5466-1035 offers significantly more processing power and updated Ethernet capabilities, it may require a migration of the application software and potentially a backplane or chassis verification. Always check the GAP (Graphical Application Programmer) software version compatibility.
Q: What is the purpose of the three Ethernet ports? A: These ports allow for segregated network traffic. One is typically used for the control network (HMI communication), one for peer-to-peer communication between controllers, and the third for Service/Maintenance or Modbus TCP protocols.
Q: Does this module support hot-swapping? A: In a Triple Modular Redundant (TMR) configuration, a failed CPU can be replaced while the other two CPUs continue to run the process. However, specific synchronization procedures must be followed through the Woodward software suite to bring the new module online.
Related Model Recommendations
- Woodward 5466-1045 (MicroNet Simplex CPU)
- Woodward 5466-316 (MicroNet 040 CPU)
- Woodward 5501-502 (MicroNet TMR Power Supply)
- Woodward 5464-834 (MicroNet Analog I/O)
- Woodward 5466-425 (MicroNet RTC Module)


