{"product_id":"honeywell-51304421-200-circuit-board","title":"Honeywell 51304421-200 Circuit Board","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 51304421-200\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e51304421\u003c\/strong\u003e PLCG Relay Panel Card, operates as a dedicated hardware component for relay output switching and programmable logic controller gateway interface execution within Honeywell TDC 3000 systems.\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\u003e51304421-200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 0.85 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eMax. 10 W via chassis backplane supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003ePLCG Relay Panel Card \/ Circuit Board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eHoneywell TDC 3000 \/ PLCG Gateway\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Output\u003c\/td\u003e\n\u003ctd\u003eMulti-channel discrete relay switching outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eChassis \/ Rack Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol and Channel-to-Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eThe 51304421-200 relay panel card incorporates high-dielectric isolation barriers between internal logic controls and switching channels to enforce channel-to-channel isolation across all output paths. This isolation prevents field inductive kickback, voltage surges, and common-mode transients from corrupting adjacent system buses or interfering with analog loops processing 4-20 mA HART loop protocol telemetry in shared process control enclosures.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What is the primary function of the 51304421-200 in a TDC 3000 architecture?\u003c\/p\u003e\n\u003cp\u003eA: The board provides relay output switching control and signal interfacing between the Programmable Logic Controller Gateway (PLCG) and connected field devices or intermediate terminal assemblies.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 51304421-200 board be hot-swapped while the rack backplane is powered?\u003c\/p\u003e\n\u003cp\u003eA: No, backplane power to the PLCG rack section must be de-energized or field outputs bypassed prior to removing or inserting the card to prevent voltage arcs and logic reset faults.\u003c\/p\u003e\n\u003cp\u003eQ: How is field cabling interfaced to the 51304421-200 circuit board?\u003c\/p\u003e\n\u003cp\u003eA: Cabling connects via dedicated multi-pin edge headers or interface ribbon harnesses linked to adjacent field termination assemblies.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure backplane supply power is isolated and locked out before seating the circuit card into the rack slot.\u003c\/li\u003e\n\u003cli\u003eObserve static discharge protocols and wear an ESD grounding wrist strap during physical handling.\u003c\/li\u003e\n\u003cli\u003eVerify male edge-connector contacts are clean and free of oxidation before inserting the board into the card cage.\u003c\/li\u003e\n\u003cli\u003eFasten front-panel retaining screws securely to ensure proper mechanical ground continuity with the cabinet chassis.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":53635489825077,"sku":"51304421-200","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/51304421-200_Cocoai.png?v=1790236113","url":"https:\/\/www.5gplc.com\/products\/honeywell-51304421-200-circuit-board","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}