Description
The Yokogawa CP345 is a high-performance central processor card designed for deployment within Yokogawa CENTUM distributed control system architectures, including the CENTUM CS 3000 series. This processor module manages control execution, handles system-wide communication tasks, and processes real-time input/output logic for continuous industrial processes.
Technical Specifications
| Parameter | Value |
| Manufacturer | Yokogawa Electric Corporation |
| Product Type | DCS Processor Card Module |
| Model | CP345 |
| System Compatibility | Yokogawa CENTUM CS 3000 / CENTUM VP DCS platforms |
| Processing Architecture | 32-bit high-speed industrial microprocessor |
| Mounting Slot | Dedicated processor slot on node control unit chassis |
| Operating Temperature Range | 0 to +55 °C |
| Enclosure Rating | IP20 (Rack-mounted inside ventilated control cabinet) |
| Compliance Standards | CE, ISO, RoHS compliant system components |
Commercial Terms & Availability
- Condition: New Original / Factory Sealed or Tested Surplus inventory options.
- Lead Time: 3 to 7 business days for standard stock items. Verify project-specific quantities with our distribution team.
- Warranty: 12-month standard replacement warranty from the date of shipment.
- Pricing Note: Listed price is indicative and subject to market availability. Contact our engineering sales desk for a formal, project-specific quotation.
Engineering Context and Field Integration
When replacing or commissioning a CP345 processor module within a CENTUM CS 3000 node, system integrators must adhere to strict maintenance and configuration steps:
- Node Power Isolation: Always ensure the node unit is powered down or follow approved hot-key procedures if executing redundant switchovers. Never pull an active single-card processor under power without ensuring secondary controller tracking is active.
- Software Revision Match: Verify that the software revision loaded on the replacement CP345 matches the system generation defined in the CENTUM engineering builder. Mismatched system software loads will reject node synchronization.
- Battery & Memory Backup: Check the onboard system battery/capacitor status during installation to ensure control logic and retainable data parameters are preserved during unexpected utility power loss events.
Frequently Asked Questions
Is the CP345 compatible with both single and redundant node configurations?
Yes. The CP345 can be implemented in single processor setups or configured for dual-redundant node architectures to ensure high availability in critical process control loops. Verify proper bus coupler and ESB bus settings on the rack backplane.
What causes a CPU watchdog timeout error on this module?
A watchdog fault typically indicates a severe application execution overload, memory corruption, or a hardware exception. Check system diagnostic logs via the CENTUM engineering station to isolate whether the fault originates from application code execution loops or a failing hardware board.
How do I verify the hardware revision before installation?
Check the physical label affixed to the faceplate or printed circuit board edge, and cross-reference the exact suffix codes with your system hardware definition files inside the CENTUM system builder.
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