{"product_id":"discrete-i-o-module-foxboro-fbm219-i-a-series","title":"Discrete I\/O Module | Foxboro FBM219 I\/A Series","description":"\u003ch2\u003eFoxboro FBM219 Discrete I\/O Module\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eFoxboro FBM219\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eFBM219\u003c\/strong\u003e Discrete I\/O Interface Module, operates as a dedicated hardware component for discrete signal acquisition and control execution within Foxboro Evo and I\/A Series platforms.\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\u003eFBM219\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFoxboro\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\u003e0.185 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e10.2 x 4.5 x 11.4 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eStandard Backplane Bus Load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Channels\u003c\/td\u003e\n\u003ctd\u003e24 isolated voltage inputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e8 isolated switch outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Protection\u003c\/td\u003e\n\u003ctd\u003eCurrent-limited to 2.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Update Rate\u003c\/td\u003e\n\u003ctd\u003eLess than 100 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eRedundant Fieldbus via FCM\/FCP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHART Protocol \u0026amp; Channel Isolation Performance\u003c\/h3\u003e\n\u003cp\u003eThe hardware incorporates channel-to-channel and channel-to-system galvanic isolation barriers across all 24 input and 8 output circuits to prevent ground loop currents in high-density rack configurations. Although HART loop protocol functions are reserved for transmitter-specific series such as the FBM216, the FBM219 maintains dedicated current-limiting hardware on each input circuit to hold currents at 2.5 mA, protecting internal processing logic from external field wiring short circuits and transient voltage spikes.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the module handle backplane fieldbus communication failures in redundant configurations?\u003c\/p\u003e\n\u003cp\u003eA: In dual-module redundant setups, the secondary tracking module monitors the primary module heartbeat across the redundant fieldbus. If the primary module fails or loses backplane communication, the secondary unit takes over I\/O execution without interrupting field loop states.\u003c\/p\u003e\n\u003cp\u003eQ: Are the 24 discrete input channels compatible with HART digital field devices?\u003c\/p\u003e\n\u003cp\u003eA: No, the FBM219 interface channels are strictly engineered for discrete voltage input sensing and switch output driving. Applications requiring HART protocol communication must utilize modules such as the FBM216 series.\u003c\/p\u003e\n\u003cp\u003eQ: What physical isolation mechanisms prevent field transients from damaging the system backplane?\u003c\/p\u003e\n\u003cp\u003eA: Individual galvanic isolation barriers isolate each channel from adjacent field wiring, chassis ground, and system backplane logic circuits, suppressing noise coupling and eliminating ground potential differences.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eSlide the module vertically into the designated baseplate mounting slot until the rear backplane connectors seat fully.\u003c\/li\u003e\n\u003cli\u003eTighten the top and bottom retaining screws to establish low-impedance mechanical grounding with the baseplate metal frame.\u003c\/li\u003e\n\u003cli\u003eKeep field discrete wiring separated from high-voltage AC lines inside cabinet wire ducts to reduce inductive noise.\u003c\/li\u003e\n\u003cli\u003eGround all field cable shields at a single ground bar near the cabinet entry panel to eliminate circulating ground loop currents.\u003c\/li\u003e\n\u003cli\u003eVerify that field supply voltages align with input limits and output switch ratings before energizing connected field circuits.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Foxboro","offers":[{"title":"Default Title","offer_id":43927786455139,"sku":"FBM219","price":190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/256_02870a47-c202-44ab-bc82-ef37c1ec5e19.jpg?v=1767147400","url":"https:\/\/www.autocontrolglobal.com\/products\/discrete-i-o-module-foxboro-fbm219-i-a-series","provider":"AutoControl Global","version":"1.0","type":"link"}