{"product_id":"honeywell-dc-tfb402-51307616-176-fieldbus-interface-module","title":"Honeywell DC-TFB402 51307616-176 Fieldbus Interface Module","description":"\u003cp\u003eConfigured for high-speed data routing in Experion PKS networks, the \u003cstrong\u003eHoneywell DC-TFB402 51307616-176\u003c\/strong\u003e (\u003cstrong\u003eDC-TFB402\u003c\/strong\u003e Fieldbus Interface Module) provides direct physical\/electrical execution.\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\u003eDC-TFB402 51307616-176\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\u003e0.22 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e22 cm x 12 cm x 5.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-40 to 85 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eNominal 24 VDC external supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocols\u003c\/td\u003e\n\u003ctd\u003ePROFIBUS DP, FOUNDATION Fieldbus H1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Data Rate\u003c\/td\u003e\n\u003ctd\u003eUp to 12 Mbps\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 Instrumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFOUNDATION Fieldbus \/ Profibus PA Connectivity:\u003c\/strong\u003e The module coordinates deterministic token-passing communication cycles across H1 field networks and PROFIBUS DP lines. By executing integrated physical-layer signal coupling, it standardizes cyclic and acyclic data packet transmission between smart field transmitters and the process manager.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChannel-to-Channel Isolation:\u003c\/strong\u003e Optoelectronic barriers on the fieldbus transceiver lines isolate the internal backplane logic from field-side voltage fluctuations and electromagnetic interference. This design prevents local loop faults or line short circuits from propagating back to the primary controller rack.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the DC-TFB402 interface module support online configuration of PROFIBUS nodes?\u003c\/p\u003e\n\u003cp\u003eA: No. Any significant structural alterations to the physical network nodes or communication rates require a master configuration rebuild and download, which should be done during scheduled system shutdowns to avoid bus disruption.\u003c\/p\u003e\n\u003cp\u003eQ: How is the redundant power input managed within the hardware?\u003c\/p\u003e\n\u003cp\u003eA: The module contains internal diode auctioning networks that continuously monitor dual-redundant 24 VDC power feeds. If one power rail drops below the functional threshold, load-sharing transitions to the secondary source within microseconds.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminating Resistor Activation:\u003c\/strong\u003e Ensure that the fieldbus trunk lines are terminated with matched 100-ohm passive resistors at both physical ends of the segment to suppress high-frequency signal reflections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Grounding Isolation:\u003c\/strong\u003e Connect the fieldbus cable shield to the designated cabinet instrument ground at a single point. Ensure the shield is insulated along the entire length of the cable run to prevent multipoint ground contacts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabinet Clearance Spacing:\u003c\/strong\u003e Maintain a minimum of 50 mm clearance above and below the module ventilation slots when mounting to standard DIN rails, permitting natural convective cooling within high-density panels.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":45256812527731,"sku":"DC-TFB402 51307616-176","price":410.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/screenshot_2026-05-12_10-54-12_5f5b15c9-0959-48ab-b436-378ff82db5fa.png?v=1784268639","url":"https:\/\/www.dcssupplier.com\/products\/honeywell-dc-tfb402-51307616-176-fieldbus-interface-module","provider":"DcsSupplier Limited","version":"1.0","type":"link"}