{"product_id":"foxboro-fbmslt-single-loop-transmitter-module","title":"Foxboro FBMSLT Single Loop Transmitter Module","description":"\u003ch3\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFBMSLT\u003c\/strong\u003e is a dedicated single-channel transmitter interface module developed for Foxboro distributed control platforms. It is specifically designed to process one independent 4–20 mA loop, ensuring that each measurement point is electrically and functionally isolated from the rest of the system.\u003c\/p\u003e\n\u003cp\u003eThis design approach prioritizes signal integrity and operational reliability, making the module suitable for applications where process availability and measurement accuracy cannot be compromised. It is commonly deployed in Foxboro I\/A Series and EcoStruxure Foxboro systems as part of high-availability control architectures.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4\u003e\u003cstrong\u003eGeneral Information\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\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\u003e\u003cstrong\u003eFBMSLT\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eFoxboro \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSingle Loop Transmitter Fieldbus Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Systems\u003c\/td\u003e\n\u003ctd\u003eI\/A Series, EcoStruxure Foxboro\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eFunctional Characteristics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSingle independent 4–20 mA measurement loop\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated loop power supply eliminating external power modules\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-resolution analog-to-digital conversion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFull galvanic isolation between loop and system electronics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for redundant system architectures\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eContinuous self-diagnostics including loop and module status monitoring\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAnalog Input Performance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Type\u003c\/td\u003e\n\u003ctd\u003e4–20 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Devices\u003c\/td\u003e\n\u003ctd\u003e2-wire and 4-wire transmitters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Resistance\u003c\/td\u003e\n\u003ctd\u003eApprox. 250 Ω (precision internal resistor)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1% of span\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e16-bit A\/D conversion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe module is optimized for stable measurement under varying process conditions, maintaining accuracy across the full signal range.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eLoop Power Supply\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003eApproximately 24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eInternal loop excitation for field transmitters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eIntegrated loop power simplifies wiring and reduces external component requirements in control cabinets.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eCommunication \u0026amp; Integration\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Type\u003c\/td\u003e\n\u003ctd\u003eRedundant Foxboro Fieldbus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Rate\u003c\/td\u003e\n\u003ctd\u003e2 Mbps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFault Handling\u003c\/td\u003e\n\u003ctd\u003eIsolation prevents propagation of electrical faults\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eOptional diagnostic modules can be added at the segment level to enhance monitoring and maintenance visibility.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eMechanical \u0026amp; Environmental Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e102 × 45 × 104 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eStandard FBM baseplate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e−40°C to +70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eOne loop per module design for maximum signal independence\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIntegrated power supply for field transmitters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh-resolution 16-bit signal acquisition\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRobust electrical isolation for noise immunity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRedundant Fieldbus communication for continuous operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBuilt-in diagnostics for loop and module health\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFBMSLT (P0903AY)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis typically selected for process areas where measurement reliability is critical and loop isolation is required. Typical use cases include offshore production platforms, refinery units, high-pressure steam systems, power plants, and custody transfer measurement points.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhy use a single-loop module instead of a multi-channel FBM?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA single-loop design ensures that faults or maintenance on one loop do not impact other process signals, which is critical in high-availability systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDoes\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFBMSLT (P0903AY)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovide loop power?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, it includes an internal 24 VDC supply for powering field transmitters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhat level of accuracy can be expected?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module provides ±0.1% of span accuracy with 16-bit resolution.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIs it suitable for redundant systems?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, it supports redundant Fieldbus communication and can be deployed in fault-tolerant configurations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCan it be used with both 2-wire and 4-wire transmitters?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, it supports both types depending on wiring configuration.\u003c\/p\u003e","brand":"Foxboro","offers":[{"title":"Default Title","offer_id":43166074175578,"sku":"FBMSLT","price":177.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/P0972VA1_3c8065e9-d0b1-4a0c-b591-376a6ecbe90a.jpg?v=1775032203","url":"https:\/\/www.plcmasters.com\/tr\/products\/foxboro-fbmslt-single-loop-transmitter-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}