Description
Yokogawa CP345 | CENTUM CS3000 Control Processor Card
Dynamic Product Introduction
Operating large-scale continuous process plants requires uncompromised computational stability and fault-tolerant controller architecture. When legacy control nodes face processing bottlenecks or hardware degradation, installing a verified Yokogawa CP345 processor card restores absolute determinism to your CENTUM environment.
Unlike standard commercial computers, this specialized DCS processor is engineered from the silicon up for harsh industrial conditions, managing thousands of real-time I/O tags without latency. Deploying a fresh CP345-S1 unit ensures seamless system expansion, dependable redundancy handshakes, and uninterrupted execution of critical control logic.
CP345
Key Technical Specifications
| Core Parameter | Technical Specification |
| Product Model | CP345 (CP345-S1) |
| Manufacturer | Yokogawa Electric Corporation |
| System Compatibility | CENTUM CS3000 R3 / CENTUM VP platforms |
| Module Classification | Field Control Station (FCS) Processor Card |
| Processor Architecture | High-performance 32-bit RISC processor core |
| Redundancy Support | Dual-redundant configuration capabilities (CPU and bus lines) |
| Backplane Interface | Proprietary Yokogawa ESB/ER bus slot connector |
| Operating Temperature | 0°C to +50°C industrial rack threshold |
| Physical Dimensions | 5.7 cm × 26.0 cm × 24.8 cm (2.3″ × 10.3″ × 9.8″) |
| Module Weight | Approximately 0.6 kg (1 lbs 6.4 oz) |
Global Sourcing & Live-Test SOP (Transparency Core)
Acquiring legacy or surplus DCS processor cards through secondary markets requires a stringent verification protocol to eliminate hardware faults and protect live process networks.
- Inbound Verification: Every incoming CP345 batch undergoes high-magnification inspection of backplane connector pins and holographic laser traceability checks against official Yokogawa production records.
- Live Simulation: Technicians seat the card into an active CENTUM test rack energized by stable power supply rails to verify bus initialization, self-diagnostic routines, and memory health.
- Diagnostics: Engineers execute full-scale system software handshakes, validating communication port stability and executing a 24-hour thermal soak run under load.
- Final Prep: Hardware units receive comprehensive firmware revision logging, static-dissipative wrapping, and vacuum sealing inside heavy-gauge moisture-barrier ESD shielding bags.
The Field Engineer’s Pitfall Guide
❗ Firmware Revision Mismatches: Sliding a replacement card with an unaligned system software revision into a redundant node pair can cause synchronization failure. I’ve seen plant commissioning windows stall because a mismatched CPU rejected the active CENTUM system container file.
❗ Node Address and Switch Settings: Failing to verify hardware switch configurations or node identifiers on the replacement card prior to rack insertion will trigger communication dropouts across the control bus. Always mirror the exact configuration profile of the legacy unit.
❗ Hot-Swap Sequence Errors: Bypassing standard software-mandated procedures during physical insertion or extraction of a non-redundant controller card can corrupt backplane power rails. Always adhere strictly to approved plant safety and hardware replacement guidelines.
Intent-Driven FAQ
Will swapping this module erase my control application logic?
Application logic, control drawings, and station configurations are typically stored on downstream media or loaded from the CENTUM engineering station (ENG). However, you must ensure that your system software version aligns cleanly with the replacement hardware.
Are these units original factory sealed or surplus stock?
Sourced inventory pools span both original factory-sealed packaging and fully certified, tested surplus hardware. Every unit undergoes bench-level validation before dispatch.
Can this processor be used in single or dual-redundant setups?
Yes, the architecture fully supports dual-redundant configurations to ensure high availability and bumpess switchover in critical process control loops.
What software environment is used to configure this processor?
Engineering, configuration, and monitoring are managed directly through Yokogawa’s proprietary CENTUM system software tool suites.
What warranty accompanies a replacement processor card?
All supplied units carry a comprehensive 1-year operational warranty covering internal component integrity, processing stability, and communication port health.
Are you deploying this processor into a greenfield CENTUM system expansion or utilizing it as a hot-spare replacement for an existing node?
