Product Overview
The NFCP502‑W05 is a high-performance CPU processor module for YOKOGAWA STARDOM FCN‑500 control system, serving as the core arithmetic unit of field control stations with default S1 hardware revision. Developed for high-precision and high-stability industrial automation control scenarios, it is equipped with a high-performance industrial processor and large-capacity storage, delivering powerful logic operation, data processing, I/O communication management and system data synchronization capabilities. Supporting dual-redundant hot standby architecture and bumpless system switching, it effectively avoids equipment shutdown and process interruption, fully adapting to continuous industrial production conditions. With multiple integrated industrial communication interfaces and strong anti-interference performance, it ensures long-term stable operation. This model has been discontinued by the original manufacturer, with refurbished and used spare parts dominating the market supply.
2. Core Technical Specifications
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Parameter Items
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Technical Specifications
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Model Number
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NFCP502‑W05 (S1 Hardware Version)
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Manufacturer
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YOKOGAWA Electric Corporation (Japan)
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Applicable System
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STARDOM FCN‑500 Field Control System
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Processor
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Intel Atom E3815 1.46GHz Industrial Processor
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RAM
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256MB ECC Memory for accurate data calculation
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Power-off Storage
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2MB ECC Backup SRAM with lithium battery protection
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Onboard Flash
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1GB Built-in Flash Memory
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Communication Ports
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4×Gigabit Ethernet (10/100/1000BASE‑T), 1×RS232‑C Serial Port
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Expansion Support
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SDHC Card (4‑32GB Class10) for program and data backup
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System Architecture
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Dual CPU redundant hot standby, bumpless switching
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Power Supply
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5VDC backplane power supply, max 1700mA power consumption
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Operating Temperature
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Standard: 0℃～+55℃; Wide temperature: -20℃～70℃
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Protection Grade
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IP20, natural air cooling
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Core Functions
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Logic operation, I/O bus management, system diagnosis, data synchronization, fault self-check
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3. Application Scope
With high reliability, redundant performance and strong anti-interference capability, the NFCP502‑W05 CPU module is widely used in various uninterrupted industrial automation control scenarios:
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Petrochemical Industry: Distributed process control for refineries, coal chemical plants, LNG terminals, long-distance oil and gas pipelines, and fine chemical production units, ensuring system stability under high-temperature, high-pressure and flammable-explosive working conditions.
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Power & Energy Industry: Automatic control of auxiliary systems in thermal power plants and hydropower stations, substation integrated automation, and monitoring systems for new energy power stations, meeting the uninterrupted operation requirements of the power industry.
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Metallurgy & Building Materials Industry: Logic control and data acquisition for large continuous production equipment such as steel blast furnaces, converters, continuous casting and rolling lines, cement kilns and paper production lines.
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Environmental Protection & Water Treatment Industry: Process control for municipal sewage treatment, industrial wastewater treatment and pure water preparation systems, realizing accurate adjustment of water quality parameters and equipment linkage control.
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General Industrial Automation: Core control units for large factory assembly lines and complete automatic equipment, suitable for industrial control scenarios requiring extremely high system stability and fault tolerance.
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