{"product_id":"yokogawa-duplicated-field-control-unit-fcu-afv10d-s41251","title":"Yokogawa Duplicated Field Control Unit (FCU) | AFV10D-S41251","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa AFV10D-S41251\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as the primary control station for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCENTUM VP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDistributed Control System (DCS). As a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDuplicated (Duplexed)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eField Control Unit, it is engineered for critical process environments where continuous operation is mandatory. This unit houses the redundant processor modules that execute regulatory control, complex sequence logic, and real-time data calculations. The \"D\" prefix signifies its redundant architecture; if the primary controller encounters a hardware fault, the secondary unit assumes control instantaneously, ensuring zero process interruption.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e100% Brand New and Original Factory Sealed.\u003c\/p\u003e\n\u003ch2\u003ePart Number Breakdown: AFV10D-S41251\u003c\/h2\u003e\n\u003cp\u003eYokogawa utilizes a specific suffix code to define the power, mounting, and networking specifications of the FCU:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAFV10D:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDuplicated Field Control Unit (for Vnet\/IP and FIO).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e-S:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eStandard type.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e4:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDual-redundant 100-120 V AC Power Supply.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e19-inch Rack-mount type.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVnet\/IP Interface (Redundant).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e5:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnhanced hardware revision with G3 corrosive resistance protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBasic hardware version for optimized processor stability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp\u003eThe AFV10D-S41251 provides high-speed processing and environmental hardening for modern industrial automation.\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProcessor Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eHigh-performance RISC processor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eControl Network:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eVnet\/IP (1 Gbps Redundant Ethernet).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eI\/O Bus:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFIO (Field Input\/Output) bus interface.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMemory Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBattery-backed RAM for database retention.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnvironmental Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eISA Standard S71.04 Class G3 (Corrosive Resistance).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Supply:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e100-120 V AC, 50\/60 Hz (Dual-redundant).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eStandard 19-inch rack-mount.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMission-Critical Redundancy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe AFV10D-S41251 is designed for high-availability \"Hot Standby\" operation. Both CPU modules synchronize data in real-time. In the event of a failure on the active processor, the backup takes over in less than one scan cycle, preventing any \"bumps\" in the control output.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eG3-Rated Environmental Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe \"5\" in the suffix indicates that this unit is treated with a conformal coating to meet ISA G3 standards. This protects the internal circuitry from corrosive gases like\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$H_{2}S$\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e$SO_{2}$\u003c\/span\u003e, making it ideal for refineries, chemical plants, and wastewater facilities.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Speed Vnet\/IP Connectivity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtilizing a 1 Gbps Vnet\/IP network, this controller communicates massive amounts of data to the HMI and other control stations with minimal latency. This is critical for large-scale plants with thousands of active control loops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeamless FIO System Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis FCU acts as the master for Yokogawa’s FIO (Field I\/O) modules (e.g., ADV151, ADV551). The local bus architecture ensures rapid data refresh rates between field sensors and the controller's logic engine.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOnline Maintenance \u0026amp; Hot-Swapping:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRedundant components, including power supply units and communication cards, can be replaced while the plant remains under active control. This significantly improves the Mean Time to Repair (MTTR) and reduces the risk of human error during maintenance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the main difference between AFV10D and AFV10S?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe AFV10D is the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDuplexed\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(redundant) version containing two CPU modules, while the AFV10S is a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSingle\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(non-redundant) version. For any critical safety or production loop, the AFV10D is the industry standard.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this unit include the CPU cards (CP461)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe AFV10D-S41251 specifies the chassis, power, and environmental rating. While it is designed to hold the CPU modules, the specific modules (typically CP461) are often listed as separate components in a complete system order.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit be used in a 220V AC environment?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This specific model (suffix \"-4\") is rated for 100-120 V AC. For 220-240 V AC power environments, you would require the suffix \"-2\" version of the AFV10D.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should the backup battery be replaced?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe lithium battery (Part No. S9185FA) preserves the control database during power loss. We recommend a proactive replacement every 3 to 5 years during a scheduled plant turnaround.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":52471886643509,"sku":"AFV10D-S41251","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/AFV10D-S41101_6425ce0d-18a8-4b5f-9f80-a9661d9f59a0.jpg?v=1774339831","url":"https:\/\/www.5gplc.com\/products\/yokogawa-duplicated-field-control-unit-fcu-afv10d-s41251","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}