Description
Technical Specifications
- Product Model: CP471-01 S1
- Brand: Yokogawa
- Warranty: One Year
- Input Voltage: 24 VDC (18–30 VDC) backplane supply; typical power consumption 15 W
- Operating Temperature: 0 °C to +50 °C
- Storage Temperature: -40 °C to +85 °C
- Response Time: Deterministic control cycle down to 100 ms
- Protection Class: IP20, rack-mounted module with conformal coating (ISA G3 compliant)
- Accuracy Class: N/A (Central Processor Module)
- Output Frequency: N/A
- Rated Current Range: Module draw ≤ 620 mA
- Communication Interface: Dual Vnet/IP Ethernet ports, ESB internal system backplane
- Supported Protocols: Vnet/IP, ESB bus, CENTUM VP proprietary control protocol
- Overload Capacity: Built-in surge protection; ECC error correction for internal memory
- Dimensions: 199.5 mm × 149 mm × 32.8 mm
Product Overview
The CP471-01 S1 is a high-performance processor module functioning as the core CPU for Yokogawa CENTUM VP Field Control Station (FCS), compatible with AFV30, AFV40, A2FV50 and A2FV70 field control units for CENTUM VP R6.05 and later firmware versions. This module executes continuous regulatory control, sequence logic, arithmetic calculations and alarm management while coordinating data exchange between local I/O assemblies and the central DCS network. It fully supports dual-redundant duplex configurations, enabling bumpless automatic failover between active and standby processors. Hot-swap functionality allows online module replacement in redundant setups without interrupting live process operations. Process control and instrumentation engineers implement this unit for mission-critical industrial control systems. Reliable deterministic processing maintains stable closed-loop control, reduces unplanned process shutdowns and supports compliance with continuous production safety standards across large-scale process plants.
Application Scenarios
- Petrochemical Refinery Process Units: Installed inside field control stations to manage distillation columns, reactors and separation processes. Redundant processor architecture prevents loss of critical temperature, pressure and flow control during hardware faults.
- Natural Gas Processing & LNG Facilities: Executes control logic for compressors, turboexpanders and cryogenic processing loops. Dual Vnet/IP communication ensures resilient data transmission across geographically distributed process areas.
- Thermal & Combined Cycle Power Plants: Operates boiler and turbine auxiliary control loops for feedwater regulation, combustion control and emission monitoring. Conformal coated hardware improves stability in high-humidity control room environments.
- Water & Wastewater Large-Scale Treatment Plants: Provides centralised control for pumping networks, aeration basins and sludge treatment processes. Online maintenance capability minimises operational disruption during scheduled system upgrades and spare part exchange.
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