{"product_id":"honeywell-51305430-100-control-network-processor-board","title":"Honeywell 51305430-100 Control Network Processor Board","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell 51305430-100\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e51305430-100\u003c\/strong\u003e Control Network Processor Board (model \u003cstrong\u003eLCNP-4\u003c\/strong\u003e), operates as a dedicated hardware component for high-speed Local Control Network (LCN) data processing within Honeywell TotalPlant Solution (TPS) and TDC 3000 distributed control system architectures. This PC board populates host workstation slots to decode network communication frames, routing real-time global database updates between the physical coax network cable and local application processors.\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\u003e51305430-100\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\u003eUnited States\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.12 lbs (0.51 kg net mass profile)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard proprietary multi-layer PC board layout format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eStandard indoor control room environment bounds (0 to 50 deg C typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eSized by backplane rail distribution limits (5 VDC \/ 12 VDC tracks)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eControl Network Processor Board (LCNP-4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Interface\u003c\/td\u003e\n\u003ctd\u003eLocal Control Network (LCN) infrastructure linkage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Interface\u003c\/td\u003e\n\u003ctd\u003eSpecialized workstation extension bus path\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHardware Revision\u003c\/td\u003e\n\u003ctd\u003e51305430100 baseline specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLifecycle Status\u003c\/td\u003e\n\u003ctd\u003eDiscontinued by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Control and DCS Metrics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFOUNDATION Fieldbus \/ Profibus PA Connectivity and Bridge Routing:\u003c\/strong\u003e The module functions as a primary high-level hardware gate that allows basic process parameters to cross between the legacy LCN platform and newer field networks. This configuration coordinates low-level FOUNDATION Fieldbus \/ Profibus PA connectivity data packets by packaging field variables into standard LCN token-ring messages, matching execution rates across the architecture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel-to-Channel Isolation and Coaxial Interface Tracing:\u003c\/strong\u003e The network interface boundary features optical and pulse transformer separation links that insulate the internal processing microchips from external coaxial network potential differences. This layout enforces strict isolation bounds across the incoming signaling lines, blocking ground loops or induced cable surges from faulting the core workstation backplane logic.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: What specific diagnostic role does the LCNP-4 designation indicate for this board assembly?\u003c\/p\u003e\n\u003cp\u003eA: The LCNP-4 designation represents the fourth-generation revision of the Local Control Network Processor hardware layer. It incorporates a more compact integrated circuit footprint and higher processing capacity than previous revisions to manage real-time tag data tables, token passing schedules, and background error logs without degrading host workstation performance.\u003c\/p\u003e\n\u003cp\u003eQ: How does the 51305430-100 board respond if an LCN coax cable link is broken or experiences signal decay?\u003c\/p\u003e\n\u003cp\u003eA: The board monitors network signal integrity continuously across its redundant coaxial ports. If an electrical open, short, or signal termination fault occurs on the primary cable line, the onboard transceiver logic registers the error and switches the data path to the secondary redundant coax channel in a sub-millisecond window.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Layout Alignment, Clearance Constraints, and Mechanical Seating:\u003c\/strong\u003e De-energize the host workstation chassis completely before starting the installation. Align the edge connector of the 1.12 lbs board precisely with the designated backplane receiver slot, press firmly down until the module seats into the frame, and secure the metal faceplate retention screws to ensure a proper ground contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Separation, Wireway Constraints, and Shield Grounding:\u003c\/strong\u003e Route the dual LCN coaxial cables through dedicated cabinet wire ducts kept separate from high-current AC electrical lines or variable frequency drive cables. Ensure the outer shields of the coaxial lines terminate at the approved BNC bulkheads, bonding the network tap blocks directly to the station grounding bus bar to safely ground external electromagnetic noise fields.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":45147350761587,"sku":"51305430-100","price":410.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-07-02_16-11-56.png?v=1782982506","url":"https:\/\/www.dcssupplier.com\/products\/honeywell-51305430-100-control-network-processor-board","provider":"DcsSupplier Limited","version":"1.0","type":"link"}