{"product_id":"honeywell-51303932-476-serial-interface-modbus-eia-232-fta","title":"Honeywell 51303932-476 Serial Interface Modbus EIA-232 FTA","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eProviding reliable industrial communication link capability, the Honeywell 51303932-476 serves as a dedicated Serial Interface Modbus EIA-232 Field Termination Assembly (FTA) within integrated Honeywell control architectures. This high-reliability module enables seamless point-to-point communication between Honeywell control networks (such as TDC 3000 and Experion systems) and external Modbus-compatible subsystems. By using standardized serial layers, it ensures deterministic register mapping and robust data transfer for critical process automation applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtocol Compliance:\u003c\/strong\u003e Natively supports standard Modbus RTU\/ASCII protocols for consistent third-party system integration.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePhysical Interface:\u003c\/strong\u003e Complies with EIA-232 (RS-232) electrical standards, optimized for dedicated point-to-point communication.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Connection Infrastructure:\u003c\/strong\u003e Equipped with both a DB25 port and compression terminal blocks to match site-specific wiring standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle-Channel Isolation:\u003c\/strong\u003e Dedicated single-channel path optimizes data throughput while limiting the propagation of electrical faults.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003eInterfacing distributed control systems (DCS) with external programmable logic controllers (PLCs).\u003c\/li\u003e\n  \u003cli\u003eLinking remote gas chromatographs, flow meters, and analytical equipment to the central control room.\u003c\/li\u003e\n  \u003cli\u003eIntegrating heavy machinery vibration monitoring systems and power distribution monitors with legacy control architectures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; font-weight: bold;\"\u003eSpecification value\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eHoneywell\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e51303932-476\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eProduct Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eSerial Interface Modbus EIA-232 FTA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eInterface Standard\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eEIA-232 (RS-232)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eNumber of Channels\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e1 Channel\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eTerminal Types\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eDB25 or Compression Screw Terminals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eModule Size Classification\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eSize A (6 inches \/ 152 mm)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003ePhysical Dimensions\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e15.2 cm x 12.0 cm x 8.2 cm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eNet Weight\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e0.32 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e1.50 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEngineering Field Notes\u003c\/h3\u003e\n\u003ch4 style=\"color: #1a365d; margin-bottom: 0.5rem;\"\u003eAlternative Models and Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eThe 51303932-476 matches the standard form-factor for Size A field termination assemblies in Honeywell Serial Interface Module (SIM) installations. It acts as a direct pin-compatible unit for legacy serial configurations, but always verify module jumper configuration alignments when hot-swapping older revisions of the SI board.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls and Noise Immunity\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eBecause EIA-232 uses single-ended signals referenced to a common ground, it is highly susceptible to ground loop currents and electromagnetic interference (EMI). Keep the cable distance under 15 meters (50 feet) and ensure the shield is grounded at only one end to prevent potential ground loops between the FTA and external slave nodes.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #1a365d; margin-bottom: 0.5rem;\"\u003eCommissioning and Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen using the compression terminal blocks, refer closely to the pin map to separate signal ground from protective earth ground. If you are experiencing constant communication timeouts (Modbus Code 4 or general framing errors), double-check if your external peripheral requires a null-modem configuration (swapped RX\/TX pins) versus a straight-through pinout mapping.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e De-energize all power sources supplying the host system and interface racks before inserting, removing, or wiring the Field Termination Assembly. Failure to isolate power can result in system damage or unexpected interruption of control bus operations.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eMount the Size A board securely onto the designated enclosure chassis using the integrated mounting guides.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eChoose either the DB25 connector or the compression screw terminal block for the serial interface link. Do not connect signals to both ports simultaneously.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eConnect the communication cable shield directly to the shield terminal clamp to minimize high-frequency ambient noise interference.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n  \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; font-weight: bold; margin-right: 0.75rem; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n  \u003cdiv style=\"color: #2d3748;\"\u003eRestore power to the interface racks and configure the corresponding Modbus registers on the host console to establish communication.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":52679456194923,"sku":"51303932-476","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/51303932-476-4fikdpzzh34_bc2df0bf-e380-4a3b-a381-56519c3eb4c4.jpg?v=1765958450","url":"https:\/\/www.plcprotech.com\/id\/products\/honeywell-51303932-476-serial-interface-modbus-eia-232-fta","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}