{"product_id":"logix5572s-pac-controller-allen-bradley-1756-l72s","title":"Logix5572S PAC Controller | Allen-Bradley 1756-L72S","description":"\u003ch2 style=\"color: #003366; font-weight: bold; margin-bottom: 12px;\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #333333;\"\u003eThe \u003cstrong style=\"color: #003366;\"\u003eAllen-Bradley 1756-L72S\u003c\/strong\u003e is a high-performance GuardLogix 5570 Programmable Automation Controller (PAC) engineered by Rockwell Automation. This dual-processor module integrates standard and safety control functions within a single project file, maximizing processing capabilities for motion and complex logic applications. Featuring 4 MB of standard user memory and 2 MB of dedicated safety memory, it serves as the primary controller alongside a required 1756-L7SP (or 1756-L7SPK) safety partner module to achieve stringent SIL 3, PLe, and Cat. 4 safety ratings. Weighing only \u003cstrong\u003e0.55 lbs (0.25 kg)\u003c\/strong\u003e, this batteryless processor utilizes modern energy storage modules (ESM) to maintain volatile memory security without maintenance downtime.\u003c\/p\u003e\n\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 20px; margin-bottom: 12px;\"\u003eKey Advantages\u003c\/h2\u003e\n\u003cul style=\"font-size: 14px; line-height: 1.5; color: #333333; padding-left: 20px; margin-bottom: 15px;\"\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eUnified Control Architecture:\u003c\/strong\u003e Combines standard machine control and functional safety systems into one unified hardware slot and application software project.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eBattery-Free Operation:\u003c\/strong\u003e Equipped with an integrated 1756-ESMCAP energy storage capacitor, eliminating the environmental impact and replacement schedules associated with traditional lithium batteries.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eMassive I\/O Scalability:\u003c\/strong\u003e Supports up to 128,000 digital I\/O points and up to 4,000 analog I\/O points across local backplanes or distributed industrial networks.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eLightweight Slot Integration:\u003c\/strong\u003e Weighing just \u003cstrong\u003e0.55 lbs\u003c\/strong\u003e, the open-style enclosure installs effortlessly into any slot of a ControlLogix 1756 chassis, allowing multiple processors to co-exist in the same frame.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eRobust Non-Volatile Memory:\u003c\/strong\u003e Ships with a pre-installed 1 GB 1784-SD1 Secure Digital card, ensuring secure firmware back-up and boot loading, expandable up to 2 GB via 1784-SD2.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 20px; margin-bottom: 12px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #003366; font-size: 14px; color: #333333;\"\u003e\n    \u003ctbody\u003e\n        \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; width: 35%;\"\u003eModel Number\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e1756-L72S (Logix5572S)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eManufacturer\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold;\"\u003eSeries \/ Family\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003eGuardLogix 5570 \/ ControlLogix\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eStandard User Memory\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e4 MB\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold;\"\u003eSafety Memory\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e2 MB\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eI\/O Memory\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e0.98 MB\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold;\"\u003eSafety Partner Module\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e1756-L7SP \/ 1756-L7SPK (Required)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eNon-Volatile Storage\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e1 GB SD Card (1784-SD1 included, supports up to 2 GB)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold;\"\u003eNet Weight\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e\u003cstrong\u003e0.55 lbs (0.25 kg)\u003c\/strong\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eCurrent Draw\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e800 mA @ 5.1V DC \/ 5 mA @ 1.2V DC\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold;\"\u003ePower \u0026amp; Thermal Dissipation\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e2.5 Watts \/ 8.5 BTU per hour\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px; font-weight: bold; background-color: #f9f9f9;\"\u003eIsolation Voltage\u003c\/td\u003e\n            \u003ctd style=\"border: 1px solid #003366; padding: 6px;\"\u003e30V Continuous (Basic Insulation)\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 20px; margin-bottom: 12px;\"\u003eQuick Installation Tips\u003c\/h2\u003e\n\u003cul style=\"font-size: 14px; line-height: 1.5; color: #333333; padding-left: 20px; margin-bottom: 15px;\"\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eSlot Layout Planning:\u003c\/strong\u003e The 1756-L72S is an open-style module that can be inserted into any standard slot of a 1756 ControlLogix chassis. However, it must be paired in a neighboring slot with its safety partner, the 1756-L7SP module. Despite their minimal combined weight (each processor is only \u003cstrong\u003e0.55 lbs\u003c\/strong\u003e), ensure both modules are locked into the backplane connectors firmly.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eChassis and Power Compatibility:\u003c\/strong\u003e This processor is fully compatible with standard or conformally coated chassis assemblies (e.g., 1756-A4, 1756-A7, 1756-A10, up to 1756-A17 standard\/K-series) and can be powered by standard industrial power supplies like the 1756-PA75 or 1756-PB75 ranges.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eEnergy Storage Selection:\u003c\/strong\u003e The unit comes standard with the integrated 1756-ESMCAP capacitor. If your site applications prohibit USB configuration or SD card utilization for enhanced security, consider replacing it with the 1756-ESMNRM module. For systems requiring immediate power cuts without residual clock uptime, select the 1756-ESMNSE option.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"color: #003366; font-weight: bold; margin-top: 20px; margin-bottom: 12px;\"\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #333333; margin-bottom: 2px;\"\u003e\u003cstrong\u003eQ1: Is the safety partner module configured separately from the 1756-L72S primary module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #555555; margin-bottom: 10px;\"\u003eA1: No. The safety partner controller (1756-L7SP) is automatically configured by the system. Both standard and safety routines are developed and compiled within a single, integrated project environment, drastically cutting engineering time compared to isolated safety solutions.\u003c\/p\u003e\n\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #333333; margin-bottom: 2px;\"\u003e\u003cstrong\u003eQ2: What communication capabilities are built onto the front faceplate of the module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #555555; margin-bottom: 10px;\"\u003eA2: The 1756-L72S features a built-in USB port intended for programming, configuration, firmware updates, and rapid online diagnostics. For real-time plant network communication and safety I\/O data links, separate EtherNet\/IP, ControlNet, or DeviceNet communication bridge modules must be added to the chassis.\u003c\/p\u003e\n\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #333333; margin-bottom: 2px;\"\u003e\u003cstrong\u003eQ3: How many tasks can this processor handle concurrently?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 14px; line-height: 1.5; color: #555555; margin-bottom: 10px;\"\u003eA3: The controller supports a maximum of 31 standard tasks and 1 dedicated safety task, with a high capacity of up to 100 separate logic programs allowed per single task. Event tasks can be triggered by all supported system event types.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51050298605700,"sku":"1756-L72S","price":142.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1756-L72S.jpg?v=1785079065","url":"https:\/\/www.etowonauto.com\/kk\/products\/logix5572s-pac-controller-allen-bradley-1756-l72s","provider":"Etowon Auto","version":"1.0","type":"link"}