{"product_id":"1756-l7spxt-allen-bradley-safety-partner-module-controllogix","title":"1756-L7SPXT Allen-Bradley Safety Partner Module ControlLogix","description":"\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-L7SPXT\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1756-L7SPXT\u003c\/strong\u003e Safety Partner Module, operates as a dedicated hardware component for dual-processor safety redundancy and cross-checking execution within GuardLogix control systems. Placed adjacent to a primary GuardLogix controller, it provides functional safety verification to achieve SIL 3 and ISO 13849-1 PLe standards in extended-temperature environments.\u003c\/p\u003e\n\u003ch3\u003eCatalog Designation \u0026amp; Subsystem Breakdown\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1756\u003c\/strong\u003e: Chassis-based ControlLogix platform component.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL7\u003c\/strong\u003e: Series 7 architecture processor co-processing unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSP\u003c\/strong\u003e: Safety Partner co-processor providing 1oo2 redundant safety logic evaluation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eXT\u003c\/strong\u003e: Extreme Environment variant rated for extended temperature operation from -25 to 70 deg C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePhysical Parameters \u0026amp; Operating Limits\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\u003e1756-L7SPXT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\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\u003e0.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e23.3 x 18.3 x 5.3 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-25 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e2.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Memory\u003c\/td\u003e\n\u003ctd\u003e0.98 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDigital I\/O (Max)\u003c\/td\u003e\n\u003ctd\u003e128,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog I\/O (Max)\u003c\/td\u003e\n\u003ctd\u003e4000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal I\/O (Max)\u003c\/td\u003e\n\u003ctd\u003e128,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw (1.2V DC)\u003c\/td\u003e\n\u003ctd\u003e5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw (5.1V DC)\u003c\/td\u003e\n\u003ctd\u003e800 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTariff Code\u003c\/td\u003e\n\u003ctd\u003e8537101190\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlace of Shipment\u003c\/td\u003e\n\u003ctd\u003eXiamen, China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eDeterministic Safety Execution \u0026amp; Firmware Synchronization\u003c\/h3\u003e\n\u003cp\u003eThe module maintains synchronous data exchange with the primary GuardLogix processor across the local backplane bus communication velocity. Deterministic EtherNet\/IP CIP Safety protocols route safety I\/O data through the primary controller while the safety partner validates execution thread results. Precise firmware flash compatibility between the safety processor and safety partner is required to maintain 1oo2 logic cross-checking without inducing diagnostic fault trips.\u003c\/p\u003e\n\u003ch3\u003eFactory Package Components\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Allen-Bradley 1756-L7SPXT GuardLogix Safety Partner module\u003c\/li\u003e\n\u003cli\u003e1 x Factory installation and safety instruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMechanical Chassis \u0026amp; Enclosure Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInstall the module in the slot immediately adjacent to the primary GuardLogix L7 series controller on the same chassis backplane.\u003c\/li\u003e\n\u003cli\u003eMaintain strict clearance distances around cabinet ventilation paths to operate within the -25 to 70 deg C thermal window.\u003c\/li\u003e\n\u003cli\u003eVerify proper chassis frame grounding to a central earth ground bus using low-impedance copper conductors.\u003c\/li\u003e\n\u003cli\u003eUse conformal-coated backplanes when deploying in harsh atmospheric conditions to complement XT-grade environmental protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHardware Technical Reference FAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eMust the 1756-L7SPXT be installed in a specific slot relative to the primary safety controller?\u003c\/p\u003e\n\u003cp\u003eYes, the safety partner must be installed directly adjacent to the primary GuardLogix L7 controller in the same physical chassis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow much current does the unit draw from the 5.1 VDC backplane rail?\u003c\/p\u003e\n\u003cp\u003eThe module consumes 800 mA from the 5.1 VDC backplane supply rail during normal operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the safety partner execute its own independent application user logic?\u003c\/p\u003e\n\u003cp\u003eNo, it executes redundant validation algorithms on safety logic tasks processed simultaneously by the main safety controller.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the required operating temperature range for this XT variant?\u003c\/p\u003e\n\u003cp\u003eThe XT rating allows continuous operation across extreme ambient temperatures ranging from -25 to 70 deg C.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan the module be inserted or removed while backplane power is applied?\u003c\/p\u003e\n\u003cp\u003eRemoval and Insertion Under Power (RIUP) is supported, but removing the unit while operational will trip safety outputs to a safe state.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat memory allocation is integrated into the 1756-L7SPXT?\u003c\/p\u003e\n\u003cp\u003eThe hardware contains 0.98 MB of dedicated I\/O memory used for internal diagnostic buffering and safety execution cross-checking.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow are firmware versions managed between the primary controller and safety partner?\u003c\/p\u003e\n\u003cp\u003eBoth modules must run identical major and minor firmware revisions to pass startup validation and enter safety task execution mode.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the total maximum I\/O capacity supported through the combined safety system?\u003c\/p\u003e\n\u003cp\u003eThe safety controller pair manages up to 128,000 total digital points and up to 4,000 analog points over configured field networks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066419138733,"sku":"1756-L7SPXT","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1756-L7SP_1-2.jpg?v=1787190362","url":"https:\/\/www.maxwellplc.com\/products\/1756-l7spxt-allen-bradley-safety-partner-module-controllogix","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}