YOKOGAWA CP11*C ASS9291AS-0 Central Processing Unit Module – CENTUM CS Distributed Control System
Imagine a continuous process plant — a refinery, a chemical reactor, or a pulp mill — where the central processing unit of the DCS suddenly fails. Within seconds, field instruments lose their command loop, control valves freeze in their last position, and operators are left blind. The cost of an unplanned shutdown in such environments can reach tens of thousands of dollars per hour, not counting the safety risks and regulatory exposure. The YOKOGAWA CP11*C ASS9291AS-0 CPU Module is the nerve center that prevents this scenario — it executes all control calculations, manages I/O communication, and maintains system integrity in real time, 24/7.
Within the YOKOGAWA CENTUM CS Distributed Control System family, the CP11*C occupies a critical tier as a high-reliability central processor designed for demanding continuous-process environments. YOKOGAWA’s CENTUM CS platform has been deployed across thousands of facilities worldwide — from LNG terminals in the Middle East to pharmaceutical plants in Europe — and the CP11*C represents the processing backbone that made that global trust possible. Its ASS9291AS-0 assembly designation identifies a specific hardware revision with defined firmware compatibility, making exact part matching essential for system integrity and spare-parts management.
Technical Specifications
- Manufacturer: YOKOGAWA Electric Corporation
- Part Number / SKU: CP11*C ASS9291AS-0
- Module Type: CPU Module (Central Processing Unit)
- Platform: CENTUM CS Distributed Control System (DCS)
- Assembly Revision: ASS9291AS-0
- Form Factor: Rack-mount module, compatible with CENTUM CS field control station chassis
- Weight: Approx. 1,000 g (as shipped)
- Communication: V-net / internal station bus (platform-native)
- Operating Environment: Industrial-grade; refer to YOKOGAWA CENTUM CS hardware manual for full environmental ratings
- Compliance: Designed and tested to YOKOGAWA factory quality standards; CE-marked platform
Note: Konmask.com does not fabricate or estimate specifications. All parameters above are sourced from publicly available YOKOGAWA documentation. For full datasheet access, contact our technical team.
Key Features & Benefits
- Real-Time Control Execution: Handles all PID, sequence, and advanced control calculations within the CENTUM CS station, ensuring deterministic loop performance.
- High System Availability: Designed for redundant CPU configurations, enabling hot-standby operation and bumpless switchover — critical for zero-downtime process industries.
- Exact Assembly Revision Match: The ASS9291AS-0 designation ensures firmware and hardware compatibility with your existing CENTUM CS station, eliminating integration risk.
- Proven Platform Longevity: CENTUM CS installations have operational lifespans exceeding 20 years; sourcing genuine CP11*C modules extends asset life without full system migration.
- Simplified Spare-Parts Strategy: A single CPU module replacement restores full station functionality, reducing mean time to repair (MTTR) dramatically versus board-level repair.
- Global OEM Pedigree: YOKOGAWA is a Tier-1 DCS vendor with ISO 9001-certified manufacturing, ensuring consistent module quality across production batches.
Industry & Equipment Applications
- Oil & Gas: Upstream wellhead control, midstream pipeline SCADA integration, downstream refinery process control (crude distillation, hydrotreating, FCC units).
- Petrochemicals & Chemicals: Reactor temperature/pressure loop control, batch sequencing, safety interlock coordination with ESD systems.
- Power Generation: Boiler combustion control, turbine governor interface, balance-of-plant automation in coal, gas, and biomass plants.
- Pulp & Paper: Digester control, bleaching sequence management, recovery boiler automation.
- Pharmaceuticals & Life Sciences: FDA 21 CFR Part 11-compliant batch process control, clean-room HVAC automation.
- Water & Wastewater: Treatment plant process control, pump station management, chemical dosing loops.
- Mining & Minerals: Flotation cell control, thickener automation, smelter process management.
System Integration & Compatible Parts
The CP11*C ASS9291AS-0 operates within the YOKOGAWA CENTUM CS Field Control Station (FCS) architecture. When planning a repair, upgrade, or spare-parts inventory, consider the following complementary components:
- CENTUM CS Power Supply Modules (e.g., YOKOGAWA PW481 series) — station power backbone
- CENTUM CS I/O Modules (AI, AO, DI, DO, pulse) — field signal interface
- V-net Communication Cards — station-to-HIS/EWS network connectivity
- CENTUM CS Chassis / Nest Units — physical mounting and backplane
- YOKOGAWA Engineering Workstation (EWS) software — for configuration download and diagnostics
Konmask.com stocks a broad range of CENTUM CS spare parts. Contact us with your full BOM for consolidated sourcing and volume pricing.
Our Quality Assurance Process
- Visual Inspection: Every module is inspected for physical damage, corrosion, bent pins, and label integrity upon receipt.
- Functional Verification: Where test equipment is available, modules undergo power-on and communication checks before dispatch.
- Authentic Sourcing: We source from decommissioned OEM installations, authorized distributors, and verified industrial surplus channels — never from unverified grey-market sources.
- Secure Packaging: Modules are shipped in anti-static bags with foam cushioning and clearly labeled outer cartons to prevent transit damage.
- Traceability: Each order is documented with sourcing records available upon request for audit purposes.
How to Order
- Submit an Inquiry: Use the contact form on this page or email support@konmask.com with your required quantity and delivery timeline.
- Receive a Quote: Our team will respond within 1 business day with pricing, availability, and lead time.
- Confirm & Pay: We accept T/T (bank transfer), PayPal, and other B2B payment methods. Proforma invoice issued upon order confirmation.
- Shipping: We ship worldwide via DHL, FedEx, UPS, and freight forwarder. Export documentation (commercial invoice, packing list, COO) provided as standard.
- After-Sales Support: Our technical team is available post-delivery to assist with installation verification and compatibility questions.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on DCS, PLC, and industrial control hardware — not a generalist electronics reseller.
- Global Reach: We have supplied spare parts to clients in over 30 countries across Asia, Europe, the Middle East, and the Americas.
- Fast Response: Inquiries answered within 24 hours; urgent requirements handled with priority sourcing.
- Competitive Pricing: Direct sourcing relationships allow us to offer market-competitive pricing without compromising on part authenticity.
- Long-Term Partnership: Many of our clients are maintenance engineers and procurement managers who return for repeat orders — we build relationships, not just transactions.
Frequently Asked Questions
- Q: Is the CP11*C ASS9291AS-0 a new or refurbished module?
- A: We supply both new (surplus/unused) and professionally tested refurbished units depending on availability. The condition is clearly stated in your quotation.
- Q: How do I confirm compatibility with my existing CENTUM CS system?
- A: Please share your FCS model number and current CPU part number. Our engineers will verify compatibility before you commit to purchase.
- Q: What is the lead time?
- A: In-stock units ship within 3–5 business days. Sourced units typically have a 2–4 week lead time. We will confirm at the quotation stage.
- Q: Do you provide a warranty?
- A: Yes. We offer a standard 90-day warranty against DOA (dead on arrival) and functional defects. Extended warranty options are available — ask your sales contact.
- Q: Can you supply other CENTUM CS spare parts at the same time?
- A: Absolutely. We encourage consolidated BOM sourcing to reduce shipping costs and simplify procurement. Send us your full parts list.
- Q: What export documents do you provide?
- A: Standard export documentation includes commercial invoice, packing list, and certificate of origin. Additional documents (e.g., MSDS, test reports) available on request.
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