{"product_id":"ics-triplex-t7481a-regent-plus-monitored-guarded-output-module","title":"ICS Triplex T7481A Regent+Plus Monitored Guarded Output Module","description":"\u003cp\u003eConfigured for fault-tolerant digital output control in Regent+Plus platforms, the \u003cstrong\u003eICS Triplex T7481A\u003c\/strong\u003e (\u003cstrong\u003eT7481A\u003c\/strong\u003e Monitored Guarded Output Module) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\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\u003eT7481A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICS Triplex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited Kingdom\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\u003eLogic side power via Triplicated Safetybus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs\u003c\/td\u003e\n\u003ctd\u003e16 guarded outputs (two isolated groups of 8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003e24 VDC solid-state\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e2 A per channel continuous (0 to 40 deg C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e18 to 36 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Load\u003c\/td\u003e\n\u003ctd\u003e20 mA (5 mA typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Voltage Drop\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 1.0 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurge Current\u003c\/td\u003e\n\u003ctd\u003e3.5 A peak, 7 A for 20 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOff-State Leakage Current\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;= 5 mA (single fault), \u0026lt;= 7.5 mA (dual fault)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e2500 V between field and logic circuits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFusing\u003c\/td\u003e\n\u003ctd\u003eFront-mounted, 3 A fast-acting fuse per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Certification\u003c\/td\u003e\n\u003ctd\u003eTÜV certified Risk Class 5, SIL 3 compliant (IEC 61508)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eFunctional Architecture and Fail-Safe Execution\u003c\/h3\u003e\n\u003cp\u003eThe module incorporates a Triple Modular Redundant (TMR) architecture interfaced via a triplicated Safetybus to enforce strict fault containment. Integral majority voting logic ensures SIL 3 compliance and execution of fail-safe states. Output drivers utilize a monitored, dual-redundant guarded structure preventing inadvertent load energization resulting from any single component failure. Continuous automatic diagnostics monitor channel status, open-circuit conditions, shorted loads, and fuse continuity across field wiring interfaces. Galvanic isolation up to 2500 V protects backplane logic from field-side transients.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does module replacement require a system shutdown or de-energization of adjacent I\/O cards?\u003c\/p\u003e\n\u003cp\u003eA: No. The card supports full hot-swap maintenance under live system operation without interrupting power or signal processing on adjacent rack slots.\u003c\/p\u003e\n\u003cp\u003eQ: How does the module react to an open-circuit field load condition?\u003c\/p\u003e\n\u003cp\u003eA: Front-panel diagnostic LEDs continuously track per-channel load and fuse status while reporting wiring break conditions back to the main processor via the Safetybus interface.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVerify that all field wiring field connections strictly observe 24 VDC polarity requirements and do not exceed the 2 A maximum continuous load rating per channel.\u003c\/li\u003e\n\u003cli\u003eMaintain proper shield grounding practices by terminating drain wires at designated system ground bars to prevent high-frequency noise interference.\u003c\/li\u003e\n\u003cli\u003eEnsure the module is fully seated into the chassis backplane before securing the retaining screws to guarantee complete contact engagement on the triplicated Safetybus.\u003c\/li\u003e\n\u003cli\u003eReplace blown channel fuses exclusively with 3 A fast-acting, front-accessible fuses rated for the specified voltage limits.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ICS Triplex","offers":[{"title":"Default Title","offer_id":44023992418394,"sku":"T7481A","price":123.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/4601\/3530\/files\/T7481A2.jpg?v=1788766608","url":"https:\/\/www.plcmasters.com\/products\/ics-triplex-t7481a-regent-plus-monitored-guarded-output-module","provider":"PLC Masters Ltd.","version":"1.0","type":"link"}