Product Core Brief
- Model: CP451-10 S2
- 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
- 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 S2 is typically sourced as an OEM replacement for failed or aging FCS processors in CENTUM CS 3000 / CENTUM VP systems. The S2 suffix indicates a specific revision variant, which may differ in memory, processing performance, or firmware compatibility from the base CP451-10. Because revision alignment is critical for redundancy pairing and system compatibility, the full label should be confirmed before substitution.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Full Model | S2 |
| 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.
- S2 revision variant: May offer updated memory or processing characteristics compared to the base CP451-10.
- 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.
- Not recommended for: Substitution with CP401, CP701, CP703, or CP451-51 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 revision code.
- Connector inspection: Check Vnet/IP, Ethernet, ESB/ER bus, and redundancy connectors for bent pins or oxidation.
- Revision confirmation: Verify the existing CPU is also S2 revision, or confirm cross-revision compatibility with the system integrator.
- 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 S2 revision. CP451-10 S2 may differ from the base CP451-10 in memory or processing capability. Always match the revision against the existing CPU label.
Do not substitute with CP401, CP701, CP703, or CP451-51. These belong to different FCS families or system generations and are not directly interchangeable with CP451-10 S2.
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 S2 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 the S2 suffix mean?
S2 indicates a specific revision variant of the CP451-10 processor. It may have updated memory, processing performance, or firmware compatibility compared to the base CP451-10.
Can I replace CP451-10 with CP451-10 S2?
Not automatically. The S2 revision may differ in memory or performance. Always confirm the existing CPU revision and system compatibility before substitution.
Can it replace CP401, CP701, or CP451-51?
No. CP401, CP701, CP703, and CP451-51 belong to different FCS families or system generations. They are not direct replacements for CP451-10 S2.
Does it support redundant operation?
Yes. CP451-10 S2 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.
