{"product_id":"1756-l73sxt-allen-bradley-guardlogix-controller-controllogix","title":"1756-L73SXT Allen-Bradley GuardLogix Controller ControlLogix","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1756-L73SXT\u003c\/strong\u003e, also cataloged as the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-L73SXT\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eGuardLogix Controller, operates as a dedicated hardware component for safety-rated logic execution and sequence control within EtherNet\/IP distributed I\/O networks.\u003c\/p\u003e\n\u003ch3\u003eCatalog Designation and Series Architecture\u003c\/h3\u003e\n\u003cp\u003eThe 1756-L73SXT is a specialized GuardLogix controller designed for extreme environment applications within the ControlLogix platform. It integrates safety task management with standard control functions, utilizing a dual-processor architecture to ensure high-speed processing of safety-critical inputs and outputs while maintaining deterministic communication across the backplane.\u003c\/p\u003e\n\u003ch3\u003eTechnical Performance Matrix\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1756-L73SXT\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen-Bradley\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOrigin\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUSA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eWeight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.26 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eShipping Dimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.5 x 114.3 x 14.5 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Temp\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eConsult specific series manual\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.5 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eUser Memory\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e9 MB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eI\/O Memory\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.98 MB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax I\/O\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e128,000\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax Analog I\/O\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4,000\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMax Digital I\/O\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e128,000\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eIsolation Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30 Volts Continuous\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCurrent Draw (1.2 VDC)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCurrent Draw (5.1 VDC)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e800 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eThermal Dissipation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8.5 BTU per hour\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDeterministic Network and I\/O Scaling\u003c\/h3\u003e\n\u003cp\u003eThe 1756-L73SXT utilizes the ControlLogix backplane to achieve high-velocity communication between the controller and local I\/O modules. The system supports massive I\/O scaling, handling up to 128,000 total points. Determinism is maintained through the integration of the EtherNet\/IP protocol, allowing the controller to synchronize safety I\/O data packets with minimal jitter. Firmware flash compatibility ensures that the controller can interface with updated safety instruction sets without requiring hardware modifications.\u003c\/p\u003e\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003col class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e1 x 1756-L73SXT GuardLogix Controller module.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1 x Integrated battery assembly for memory backup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1 x Instruction sheet for terminal alignment and slot insertion.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eSite Installation Procedures\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eEnsure the chassis is powered down before inserting the 1756-L73SXT into the designated ControlLogix slot to prevent backplane arcing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVerify that the chassis backplane connector pins are aligned correctly to prevent mechanical stress during module seating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTighten the top and bottom mounting screws to ensure proper grounding to the chassis frame and to maintain resistance against industrial vibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRoute communication cables away from high-voltage AC lines to mitigate electromagnetic interference with the controller's data bus.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOperational Frequently Asked Questions\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eDoes this controller support hot-swapping?\u003c\/p\u003e\n\u003cp\u003eThe 1756-L73SXT supports Removal and Insertion Under Power (RIUP), allowing for module replacement without shutting down the entire chassis, provided the safety system permits the transient fault.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the maximum current draw on the 5.1 VDC rail?\u003c\/p\u003e\n\u003cp\u003eThe controller consumes 800 mA from the 5.1 VDC backplane rail during standard operation. Ensure the power supply module in the chassis is sized to accommodate this load.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCan I use this with non-safety I\/O modules?\u003c\/p\u003e\n\u003cp\u003eYes, the controller supports a mix of standard and safety-rated I\/O modules within the same chassis, though safety tasks must be explicitly defined in the project configuration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the function of the 30 V isolation?\u003c\/p\u003e\n\u003cp\u003eThe 30 V continuous isolation voltage rating prevents electrical noise and ground loops from impacting the internal logic circuits and the backplane communication integrity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHow do I verify the current firmware version?\u003c\/p\u003e\n\u003cp\u003eUse the Studio 5000 Logix Designer software to query the controller's property tab while connected via USB or EtherNet\/IP to view the active firmware revision.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDoes the controller require a battery?\u003c\/p\u003e\n\u003cp\u003eYes, the included battery is necessary to maintain the real-time clock and volatile memory contents during power cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhat is the impact of the 8.5 BTU\/hour heat dissipation?\u003c\/p\u003e\n\u003cp\u003eThe thermal output is minimal, but standard cabinet ventilation practices should be followed to keep ambient temperatures within the manufacturer's specified range for the chassis.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWhy is the I\/O memory limited to 0.98 MB?\u003c\/p\u003e\n\u003cp\u003eThis memory partition is dedicated specifically to the I\/O data image table, ensuring that I\/O status updates do not compete with user logic memory for scan cycle time.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":46066418385069,"sku":"1756-L73SXT","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/1756-L73XT_1.jpg?v=1782459707","url":"https:\/\/www.maxwellplc.com\/products\/1756-l73sxt-allen-bradley-guardlogix-controller-controllogix","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}