YOKOGAWA CP461-51-S2 Processor Module – CENTUM CS 3000 Field Control Station
When a processor module fails in a distributed control system, the consequences extend far beyond a single loop going offline. An entire Field Control Station loses its execution engine — process variables stop being read, control outputs freeze or fall to their last known state, and operators are left managing a critical industrial process without automation. In oil & gas separators, chemical reactors, or power generation units, even minutes of uncontrolled operation can trigger safety shutdowns, product loss, or equipment damage. The CP461-51-S2 is the heartbeat of the FCS — without it, the station does not function.
The CP461-51-S2 is YOKOGAWA’s processor module designed for the Field Control Station (FCS) within the CENTUM CS 3000 integrated production control system. Positioned as a core computation and control execution unit, it handles real-time scanning of I/O data, execution of function blocks, and communication with the V-net control bus. The CENTUM CS 3000 platform has been deployed across thousands of process plants worldwide — in petrochemical complexes, LNG terminals, pharmaceutical manufacturing, and pulp & paper mills — making the CP461-51-S2 one of the most mission-critical spare parts in the global DCS aftermarket.
Technical Specifications
- Manufacturer: YOKOGAWA Electric Corporation
- Part Number / SKU: CP461-51-S2
- Module Type: Processor Module (CPU) for Field Control Station
- Compatible Platform: CENTUM CS 3000
- Station Type: Field Control Station (FCS)
- Communication Bus: V-net (YOKOGAWA proprietary control network)
- Form Factor: Rack-mount module
- Weight: Approx. 300 g
- Operating Environment: Industrial control cabinet, per CENTUM CS 3000 system requirements
Note: All specifications are based on YOKOGAWA published documentation. Contact us to verify compatibility with your specific system revision.
Key Features & Benefits
- Real-Time Control Execution: Executes function block programs with deterministic scan cycles, ensuring precise and repeatable process control.
- V-net Integration: Native support for YOKOGAWA’s V-net control bus enables seamless communication with HIS operator stations, EWS engineering workstations, and other FCS units.
- Redundancy Support: Designed to operate in redundant CPU configurations, providing fault-tolerant control for high-availability processes.
- Hot-Swap Capability: Supports module replacement without full system shutdown when used in redundant configurations, minimizing process interruption.
- Proven Platform Reliability: Part of the CENTUM CS 3000 ecosystem, a platform with a global installed base and a track record spanning decades of continuous industrial operation.
- Compact Rack Design: Optimized for standard CENTUM CS 3000 FCS racks, with no additional hardware adapters required.
Industry & Equipment Applications
- Oil & Gas: Upstream separation trains, gas compression stations, offshore platform DCS systems
- Petrochemical & Refining: Distillation column control, reactor temperature and pressure management
- Power Generation: Boiler control systems, turbine auxiliary control, combined-cycle plant automation
- Pharmaceutical & Fine Chemical: Batch process control, clean-room environment monitoring
- Pulp & Paper: Digester control, recovery boiler automation
- Water & Wastewater: Treatment plant process control integrated with CENTUM CS 3000 SCADA
System Integration & Compatible Parts
The CP461-51-S2 operates within the CENTUM CS 3000 FCS architecture. Compatible and commonly paired components include:
- FCS Power Supply Modules (e.g., PW481, PW482 series)
- Node Interface Units (NIU) for I/O expansion
- YOKOGAWA I/O modules (AAI, AAM, ADV, ADI, ADA series)
- V-net coaxial bus cables and terminators
- FCS rack chassis and backplane assemblies
- Redundant CPU partner module (for dual-redundant FCS configurations)
Always verify firmware revision and system software version compatibility before installation. Our technical team can assist with cross-referencing your existing system BOM.
Our Quality Assurance Process
- Source Verification: All modules are sourced from authorized distributors, decommissioned plant spares, or certified refurbishers with documented chain of custody.
- Visual & Physical Inspection: Each unit is inspected for board damage, corrosion, connector integrity, and label authenticity prior to listing.
- Functional Testing: Where test equipment is available, modules undergo power-on and communication verification.
- Anti-Static Packaging: Shipped in ESD-safe bags with foam cushioning inside double-wall cartons.
- Documentation: Shipment includes inspection report and, where available, original YOKOGAWA documentation or datasheet.
How to Order
- Submit an inquiry via the Contact Us page or email support@konmask.com with your required quantity and delivery timeline.
- Our team will confirm stock availability, condition grade (new / tested surplus / refurbished), and provide a formal quotation within 1 business day.
- Upon PO confirmation, we arrange export documentation, packaging, and shipment via your preferred freight method (DHL, FedEx, sea freight, etc.).
- Tracking information and commercial invoice are provided upon dispatch.
We support T/T bank transfer, L/C, and other standard B2B payment terms. MOQ: 1 piece.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on DCS, PLC, and industrial control components — not a general electronics marketplace.
- Global Export Experience: Serving buyers in Southeast Asia, the Middle East, Europe, and the Americas with compliant export documentation.
- Responsive Technical Support: Our team includes engineers familiar with YOKOGAWA CENTUM systems who can assist with compatibility questions.
- Competitive Lead Times: Extensive supplier network enables faster sourcing than OEM back-order queues.
- Transparent Condition Grading: We clearly disclose module condition — no misleading “new” claims on refurbished stock.
Frequently Asked Questions
Q: Is the CP461-51-S2 compatible with CENTUM VP systems?
A: The CP461-51-S2 is designed for CENTUM CS 3000. CENTUM VP uses a different processor module series. Please contact us to confirm compatibility with your specific system version before ordering.
Q: Can this module be used in a redundant CPU configuration?
A: Yes. The CP461-51-S2 supports dual-redundant FCS configurations when paired with an identical partner module and the appropriate redundancy cables and settings.
Q: What condition are your modules in?
A: We stock new, tested surplus, and certified refurbished units. Condition is disclosed in the quotation. All units pass our inspection process before shipment.
Q: How long does shipping take?
A: Express courier (DHL/FedEx) typically delivers within 3–7 business days internationally. Sea freight options are available for larger orders. Lead time depends on stock availability confirmed at time of inquiry.
Q: Do you provide a warranty?
A: Yes. We offer a limited warranty on all shipped modules. Warranty terms are specified in the quotation and vary by condition grade. Contact us for details.
Q: Can you help identify the correct replacement module for my FCS?
A: Absolutely. Share your FCS model number, current CPU part number, and system software version, and our engineers will confirm the correct replacement.
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