{"product_id":"foxboro-761cna-at-single-station-micro-controller-module","title":"Foxboro 761CNA-AT Single Station Micro Controller Module","description":"\u003cp\u003eConfigured for loop control and process variable regulation in Foxboro control systems, the \u003cstrong\u003eFoxboro 761CNA-AT\u003c\/strong\u003e (\u003cstrong\u003e761CNA-AT\u003c\/strong\u003e Single Station Micro Controller Module) provides direct physical\/electrical execution for 4-20 mA DC input processing utilizing a 32-position terminal block interface.\u003c\/p\u003e\n\u003ch3\u003eSuffix Breakdown \u0026amp; Model Matrix\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e761CNA-AT\u003c\/strong\u003e identifier designates a specific single station micro controller configuration and power rating. According to technical documentation for the Foxboro 761 series platform:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e761CNA\u003c\/strong\u003e: Base catalog model denoting the micro controller module architecture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-AT Suffix\u003c\/strong\u003e: Specifies specific terminal block layout, communication options, and power supply input configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal \u0026amp; Power Architecture\u003c\/strong\u003e: Equipped with a 32-position terminal block and configured for 120 VAC line power operation.\u003c\/li\u003e\n\u003c\/ul\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\u003e761CNA-AT\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e8.60 lbs (3.9 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003eIndustrial Operating Range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e120 VAC, 50\/60 Hz line power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e4-20 mA DC input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminal Block\u003c\/td\u003e\n\u003ctd\u003e32-position terminal block\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003e4-20 mA HART Loop Protocol and Channel Isolation\u003c\/h3\u003e\n\u003cp\u003eOperating within Foxboro control loops, the micro controller module processes analog sensor inputs while maintaining robust galvanic isolation between the 120 VAC power mains and the low-voltage internal signal processing circuits. This isolation prevents line transients, surge voltages, and common-mode noise from propagating into connected control loops. The internal circuitry supports standard 4-20 mA HART loop protocol signals, applying internal filtering stages to suppress electrical noise and ensure conversion accuracy across the operator interface display and control outputs.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 761CNA-AT controller module require a dedicated AC power line feed?\u003c\/p\u003e\n\u003cp\u003eA: Yes. The module operates on 120 VAC (50\/60 Hz) line power connected through the designated terminals on the 32-position terminal block.\u003c\/p\u003e\n\u003cp\u003eQ: Can the 32-position terminal block remain wired during module removal or maintenance?\u003c\/p\u003e\n\u003cp\u003eA: The terminal block is designed to interface directly with the controller housing, but power must be fully isolated before disconnecting field wiring or extracting the unit to prevent electrical shock or loop disruption.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that 120 VAC power and all associated loop signals are isolated and locked out before handling or installing the controller.\u003c\/li\u003e\n\u003cli\u003eInspect the 32-position terminal block wiring connections and pins for secure contact and freedom from oxidation.\u003c\/li\u003e\n\u003cli\u003eMount the controller securely in its panel cutout or housing enclosure, fastening retention clips to withstand plant vibration.\u003c\/li\u003e\n\u003cli\u003eCheck line voltage and grounding continuity before energizing the module.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Foxboro","offers":[{"title":"Default Title","offer_id":67703089791285,"sku":"761CNA-AT","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/761CNA-AT.png?v=1792045037","url":"https:\/\/www.5gplc.com\/products\/foxboro-761cna-at-single-station-micro-controller-module","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}