Product Core Brief
- Model: YOKOGAWA CP451-50
- Brand: YOKOGAWA
- Series: CENTUM VP Field Control Station Processor
- Core Function: Processor module for CENTUM VP Field Control Station, executing control logic, managing I/O communication, and coordinating field device data acquisition.
- Product Type: DCS Processor / Controller Module
- Key Specs: 24 VDC power | Ethernet + RS-485 communication | supports dual-redundant configuration | CENTUM VP compatible
- Condition: New Original (New Surplus) / Factory Sealed
Product Introduction
A failed controller can halt an entire control station before any field device trips. The YOKOGAWA CP451-50 is a processor module used in Yokogawa CENTUM VP Field Control Stations, serving as the control core that executes logic, acquires field data, and manages communication with I/O modules and operator stations.
The CP451 family is part of Yokogawa’s CENTUM VP controller lineup, where CP451-10, CP451-11, CP451-50, and CP451-51 are commonly referenced variants. The “-50” suffix generally indicates a specific hardware revision or configuration within the CP451 series, and should be confirmed against the replaced unit before ordering. The module supports dual-redundant configuration for high-availability applications and provides communication interfaces including Ethernet and RS-485 for system integration.
Because third-party listings sometimes mix specifications across CP451 variants or attribute generic CPU/memory specs without official confirmation, the exact hardware revision, firmware version, and compatible system configuration should be verified from the label and system documentation.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Model | YWA |
| Product Type | Processor / Controller Module |
| Compatible System | CENTUM VP DCS |
| Power Supply | 24 VDC |
| Communication Interfaces | Ethernet, RS-485 |
| Redundancy | Supports dual-redundant configuration |
| Typical Application | Field Control Station CPU, process control execution |
| Suffix Note | “-50” revision to be confirmed against label |
Key Selling Points & Differentiators
- CENTUM VP Field Control Station processor for core control logic execution.
- Supports dual-redundant configuration for high-availability process control.
- Ethernet and RS-485 interfaces for system and field device communication.
- Direct replacement when suffix, firmware, and system configuration match.
- Factory-sealed surplus inventory with visual QA and 12-month warranty.
- Not a communication-only module; it is a full process controller.
Quality Transparency SOP
- Visual inspection: Verify label “CP451-50,” connector condition, LED indicators, and housing integrity.
- Seal verification: Confirm original anti-static bag, packaging, and factory labeling when supplied sealed.
- Suffix cross-check: Match CP451-50 with the replaced unit; do not assume interchangeability with CP451-10, CP451-11, or CP451-51.
- Firmware check: Confirm firmware version compatibility with the existing Field Control Station configuration.
- Redundancy check: If used in a redundant pair, verify both processors match in model, suffix, and firmware.
- Communication test: After installation, verify Vnet/IP communication, I/O recognition, and control logic execution.
Technical Risk Avoidance
❗ Confirm the exact suffix. CP451-50 is not automatically interchangeable with CP451-10, CP451-11, or CP451-51 without verification.
❗ This is a process controller, not a communication-only card. Do not substitute it for ALR, AVR, or other communication modules.
❗ Verify firmware compatibility. Mismatched firmware between redundant processors or with the existing FCS configuration can prevent proper operation.
❗ Check redundancy configuration. If replacing one processor in a redundant pair, the new unit must match the existing partner in model, suffix, and firmware.
❗ Third-party listings sometimes attribute generic CPU/memory specs to CP451-50 without official confirmation. Treat those descriptions as reference only unless verified by the label.
❗ Confirm the installed CENTUM VP system version. CP451 compatibility may vary across different CENTUM VP releases.
Buyer’s FAQ
Is the YOKOGAWA CP451-50 a genuine OEM part? It is supplied as an original Yokogawa CP451-series processor module, typically as new surplus or factory sealed.
What does the CP451-50 do? It is a processor module for CENTUM VP Field Control Stations, executing control logic, managing I/O communication, and coordinating field device data acquisition.
Can it replace -10, -11, or -51? Not automatically. These variants may differ in hardware revision, firmware, or configuration. The existing unit’s label must be confirmed before substitution.
Does it support redundancy? Yes. The CP451 family supports dual-redundant configuration for high-availability applications.
What warranty do you offer? A 12-month warranty against manufacturing defects and DOA issues. Damage from incorrect firmware, wrong suffix substitution, incompatible system configuration, or redundant pair mismatch is not covered.
