{"product_id":"yokogawa-aff50d-h41201-duplexed-field-control-unit","title":"Yokogawa AFF50D-H41201 Duplexed Field Control Unit","description":"\u003cp\u003eThe \u003cstrong\u003eYokogawa AFF50D-H41201\u003c\/strong\u003e serves as the primary \u003cstrong\u003eAFF50D\u003c\/strong\u003e Duplexed Field Control Unit utilized to execute dual-processor synchronization and deterministic process control loops across Yokogawa Distributed Control System platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eAFF50D-H41201\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e8.5 kg (Standard chassis weight configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e482 mm x 399 mm x 311 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to 55 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e120 W maximum operational load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eDuplexed Field Control Unit (FCU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Cycle\u003c\/td\u003e\n\u003ctd\u003eHigh-speed deterministic execution cycle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy Model\u003c\/td\u003e\n\u003ctd\u003eDual active\/hot-standby parallel processors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and Distributed Control Architecture\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBumpless Standby Processor Synchronization\u003c\/strong\u003e The hardware structure embeds two independent processing units linked via dedicated memory-mirroring data paths. The secondary processor updates its internal register states in lockstep with the primary active card, enabling immediate bumpless control transfer without introducing processing lag or signal output dropouts during switchover events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFieldbus and Loop Communication Management\u003c\/strong\u003e The module manages real-time serial and Ethernet-based communication routing across redundant internal backplane data lines. The logic is optimized to handle a 4-20 mA HART loop protocol matrix, allowing simultaneous transmission of primary PV measurements and diagnostic device variables over field wiring infrastructures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedundant Power Rail Distribution\u003c\/strong\u003e Dual isolated power inputs feed independent internal converters on each control card. This power architecture balances voltage distribution and isolates the main CPU processing cores from electrical surges, preventing a localized short-circuit on an individual I\/O module from disrupting the field control unit logic bus.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the AFF50D-H41201 baseline assembly arrive populated with physical field I\/O interfaces?\u003c\/p\u003e\n\u003cp\u003eA: No. The AFF50D-H41201 functions strictly as the central processing and control core for the field control node. It contains the primary logic cards and redundant power backplanes, but local or remote analog and digital I\/O interface modules must be inserted into their respective chassis slots separately.\u003c\/p\u003e\n\u003cp\u003eQ: What is the mechanical limitation for card insertion or extraction while the system is under power?\u003c\/p\u003e\n\u003cp\u003eA: The passive backplane supports online replacement of a single faulted control processor card while the paired redundant processing unit handles the active process load. The extraction must be performed using the integrated chassis retention levers to ensure clean decoupling from the logic pins without generating bus voltage spikes.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":47618532245694,"sku":"AFF50D-H41201","price":3000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/f2ef106c04171e286853c21d0d2b76d7_38db8fbf-584a-4dee-aba0-611eb10d26e4.png?v=1781063993","url":"https:\/\/www.autooiltech.com\/products\/yokogawa-aff50d-h41201-duplexed-field-control-unit","provider":"AutoOilTech Limited","version":"1.0","type":"link"}