Product Core Brief
- Model: CP451-10
- Brand: YOKOGAWA
- Series: CENTUM CS 3000 / CENTUM VP Field Control Station Processor Module
- Core Function: FCS main processor module responsible for control execution, I/O management, Vnet/IP communication, and ESB/ER bus coordination.
- Product Type: DCS Processor Module / FCS CPU
- Key Specs: 32-bit RISC processor | Vnet/IP dual redundant ports | Ethernet port | ESB bus interface | Supports redundant CPU operation | 24 V DC backplane power | S2 revision available
- Condition: New Original (New Surplus) / Factory Sealed
Product Introduction
The is a YOKOGAWA CENTUM CS 3000 / CENTUM VP field control station processor module. It serves as the FCS CPU, executing continuous control, sequence control, interlocks, and batch logic, while managing local and remote I/O through the ESB/ER bus architecture.
For maintenance and procurement teams, CP451-10 is typically sourced as an OEM replacement for failed or aging FCS processors in CENTUM CS 3000 / CENTUM VP systems. It supports dual-redundant CPU configuration with bumpless transfer, and communicates with operator stations via Vnet/IP. Because revision variants such as may differ in memory, processing performance, or firmware compatibility, the full label should be confirmed before substitution.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Full Model | CP451-10 (revision may be S2 or others) |
| Product Type | FCS Processor Module / CPU |
| Compatible System | YOKOGAWA CENTUM CS 3000 / CENTUM VP DCS |
| Processor | 32-bit RISC processor |
| Communication | Vnet/IP (2 redundant ports), Ethernet port |
| I/O Bus | ESB bus for local/expansion nodes; ER bus for remote nodes |
| Power Supply | 24 V DC (backplane supplied) |
| Redundancy | Supports dual-redundant hot-standby CPU |
| Status Indicators | HRDY, RDY, COM, ALARM and similar LEDs |
| Typical Application | FCS main processor for CENTUM CS 3000 / CENTUM VP |
| Verification Required | Full model suffix, revision code, firmware compatibility, redundancy pairing |
Key Selling Points & Differentiators
- FCS main processor: Executes PID, sequence, interlock, and batch control for CENTUM CS 3000 / CENTUM VP.
- Redundant CPU support: Enables hot-standby operation with bumpless transfer for high availability.
- Vnet/IP backbone: Dual redundant Vnet/IP ports connect the FCS to operator stations and engineering stations.
- ESB/ER bus coordination: Manages local I/O nodes and remote I/O nodes through ESB and ER buses.
- OEM YOKOGAWA processor module: Suitable for maintenance, replacement, or spare stocking in CENTUM environments.
- Not recommended for: Substitution with CP401, CP701, CP703, or non-CENTUM CS 3000 / VP processors without confirming system generation and firmware compatibility.
Quality Transparency SOP
Processor modules should be verified for both physical integrity and system compatibility.
- Incoming visual QA: Inspect factory sealing, label integrity, connector pins, and module housing.
- Label verification: Confirm full model and any revision code such as S2.
- Connector inspection: Check Vnet/IP, Ethernet, ESB/ER bus, and redundancy connectors for bent pins or oxidation.
- Revision confirmation: If replacing an existing CPU, confirm whether the original unit is CP451-10 or CP451-10 S2.
- Redundancy pair check: For redundant FCS, verify both CPUs match in model and revision before installation.
- Final packing: Record serial/lot information, apply anti-static packaging, and seal with a condition label.
Technical Risk Avoidance
Confirm the revision code. CP451-10 and CP451-10 S2 may differ in memory or processing capability. Always match the revision against the existing CPU label.
Do not substitute with CP401 or CP701/CP703. CP401 belongs to the FFCS family, while CP701/CP703 belong to earlier CENTUM CS generations. They are not directly interchangeable with CP451-10.
Verify redundancy pairing. If the FCS runs in redundant mode, both CPUs should be compatible in model, revision, and firmware.
Confirm Vnet/IP domain configuration. Replacing a processor without confirming domain address and network settings may cause communication faults.
Check ESB/ER bus topology. Ensure the FCS has the correct bus coupler or interface modules for connected I/O nodes.
Firmware compatibility must be confirmed. Processor replacement may require firmware alignment with the existing CENTUM CS 3000 / CENTUM VP system version.
Buyer’s FAQ
Is CP451-10 a genuine YOKOGAWA module?
Yes. The is an OEM YOKOGAWA processor module for CENTUM CS 3000 / CENTUM VP FCS, typically supplied as new original or new surplus.
What does CP451-10 do?
It is the FCS main processor module that executes control logic, manages I/O, communicates over Vnet/IP, and coordinates ESB/ER bus nodes.
Can I replace CP451-10 with CP451-10 S2?
Not automatically. The S2 revision may have different memory or performance characteristics. Always confirm the existing CPU revision before substitution.
Can it replace CP401 or CP701?
No. CP401, CP701, and CP703 belong to different FCS families or system generations. They are not direct replacements for CP451-10.
Does it support redundant operation?
Yes. CP451-10 supports dual-redundant hot-standby CPU configuration for bumpless transfer.
What is the warranty and lead time?
Each module carries a standard 12-month functional warranty from shipment, excluding damage from incorrect installation, revision mismatch, or firmware incompatibility. In-stock units typically ship within 1–3 business days after payment confirmation.
