{"product_id":"allen-bradley-1756-l71-l71s-pac-module","title":"Allen-Bradley 1756-L71 L71S PAC Module","description":"\u003ch2\u003eAllen-Bradley ControlLogix \u003cstrong\u003e1756-L71\u003c\/strong\u003e \u0026amp; GuardLogix \u003cstrong\u003e1756-L71S\u003c\/strong\u003e Controllers\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #d35400;\"\u003eAllen-Bradley 1756-L71\u003c\/strong\u003e is a ControlLogix programmable automation controller with \u003cspan style=\"color: #2a5885; font-weight: bold;\"\u003e2 MB user memory\u003c\/span\u003e and \u003cspan style=\"color: #2a5885; font-weight: bold;\"\u003e0.98 MB I\/O memory\u003c\/span\u003e. The \u003cstrong style=\"color: #d35400;\"\u003e1756-L71S\u003c\/strong\u003e is its safety variant, adding \u003cspan style=\"color: #27ae60; font-weight: bold;\"\u003e1 MB safety memory\u003c\/span\u003e and \u003cspan style=\"color: #27ae60; font-weight: bold;\"\u003eSIL 3\/Cat. 4\/PLe\u003c\/span\u003e compliance. Both models feature a \u003cspan style=\"color: #2a5885;\"\u003e4-character display\u003c\/span\u003e, USB port, and support redundancy on ControlNet networks.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #d35400; font-weight: bold;\"\u003e1756-L71:\u003c\/span\u003e 2 MB user memory, 0.98 MB I\/O memory\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #27ae60; font-weight: bold;\"\u003e1756-L71S:\u003c\/span\u003e Adds 1 MB safety memory, SIL 3\/PLe certified\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2a5885;\"\u003e4-character display\u003c\/span\u003e for onboard diagnostics\u003c\/li\u003e\n\u003cli\u003eSupports \u003cspan style=\"color: #2a5885;\"\u003eredundancy\u003c\/span\u003e on ControlNet networks\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2a5885;\"\u003eUSB port\u003c\/span\u003e for programming and maintenance\u003c\/li\u003e\n\u003cli\u003eUses \u003cspan style=\"color: #2a5885;\"\u003eSD cards\u003c\/span\u003e (1GB\/2GB) for non-volatile storage\u003c\/li\u003e\n\u003cli\u003eI\/O capacity: \u003cspan style=\"color: #2a5885;\"\u003e128,000 digital\u003c\/span\u003e \/ \u003cspan style=\"color: #2a5885;\"\u003e4,000 analog\u003c\/span\u003e points\u003c\/li\u003e\n\u003cli\u003eRequires \u003cspan style=\"color: #2a5885;\"\u003e1756-ESMCAP energy storage module\u003c\/span\u003e (no battery)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Allen-Bradley \/ Rockwell Automation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e ControlLogix \/ GuardLogix L7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModels:\u003c\/strong\u003e \u003cstrong style=\"color: #d35400;\"\u003e1756-L71\u003c\/strong\u003e (standard), \u003cstrong style=\"color: #27ae60;\"\u003e1756-L71S\u003c\/strong\u003e (safety)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser Memory:\u003c\/strong\u003e \u003cspan style=\"color: #2a5885;\"\u003e2 MB\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Memory:\u003c\/strong\u003e \u003cspan style=\"color: #2a5885;\"\u003e0.98 MB\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Memory:\u003c\/strong\u003e \u003cspan style=\"color: #27ae60;\"\u003e1 MB\u003c\/span\u003e (L71S only)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSD Card:\u003c\/strong\u003e \u003cspan style=\"color: #2a5885;\"\u003e1 GB included\u003c\/span\u003e (expandable to 2 GB, use 1784-SD1\/SD2 only)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eI\/O Capacity:\u003c\/strong\u003e 128,000 digital \/ 4,000 analog\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication:\u003c\/strong\u003e 1 USB port, supports \u003cspan style=\"color: #2a5885;\"\u003eEtherNet\/IP, ControlNet, DeviceNet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e \u003cspan style=\"color: #2a5885;\"\u003e5 mA @1.2V DC\u003c\/span\u003e, \u003cspan style=\"color: #2a5885;\"\u003e800 mA @5.1V DC\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e \u003cspan style=\"color: #2a5885;\"\u003e0°C to 60°C\u003c\/span\u003e (32°F to 140°F)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Storage:\u003c\/strong\u003e Requires \u003cspan style=\"color: #2a5885;\"\u003e1756-ESMCAP\/ESMCAPK\u003c\/span\u003e modules\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFits all \u003cspan style=\"color: #2a5885;\"\u003e1756 ControlLogix chassis\u003c\/span\u003e (1756-A4, A10, A17, etc.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #27ae60;\"\u003e1756-L71S\u003c\/strong\u003e must pair with \u003cspan style=\"color: #27ae60;\"\u003e1756-L7SP safety partner module\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eUse only \u003cspan style=\"color: #2a5885;\"\u003eRockwell 1784-SD1\/SD2 SD cards\u003c\/span\u003e to prevent data corruption\u003c\/li\u003e\n\u003cli\u003eBattery-free operation with energy storage modules\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCertifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #27ae60;\"\u003e1756-L71S:\u003c\/strong\u003e \u003cspan style=\"color: #27ae60; font-weight: bold;\"\u003eSIL 3, Category 4, PLe\u003c\/span\u003e certified\u003c\/li\u003e\n\u003cli\u003eBoth models: \u003cspan style=\"color: #2a5885;\"\u003eCE, UL, ATEX\u003c\/span\u003e certified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x \u003cstrong\u003e1756-L71\u003c\/strong\u003e or \u003cstrong\u003e1756-L71S\u003c\/strong\u003e controller\u003c\/li\u003e\n\u003cli\u003e1x \u003cspan style=\"color: #2a5885;\"\u003e1 GB SD card\u003c\/span\u003e (1784-SD1)\u003c\/li\u003e\n\u003cli\u003e1x \u003cspan style=\"color: #2a5885;\"\u003e1756-ESMCAP\u003c\/span\u003e or \u003cspan style=\"color: #2a5885;\"\u003e1756-ESMCAPK\u003c\/span\u003e energy storage module\u003c\/li\u003e\n\u003cli\u003e1x documentation CD\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eShipping Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #d35400; font-weight: bold;\"\u003eFedEx, UPS, DHL\u003c\/span\u003e express worldwide\u003c\/li\u003e\n\u003cli\u003eShips within \u003cspan style=\"color: #2a5885;\"\u003e24 hours\u003c\/span\u003e from stock\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Documentation\u003c\/h3\u003e\n\u003cp\u003e\u003ca style=\"background-color: #d35400; color: white; padding: 10px 20px; text-decoration: none; border-radius: 5px; display: inline-block; font-weight: bold;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/1756_ControlLogix_Communication_Modules_Specifications.pdf?v=1752115237\" target=\"_blank\"\u003e📥 Download Product Datasheet PDF\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1. What is the difference between \u003cstrong\u003e1756-L71\u003c\/strong\u003e and \u003cstrong\u003e1756-L71S\u003c\/strong\u003e?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e1756-L71S\u003c\/strong\u003e adds \u003cspan style=\"color: #27ae60; font-weight: bold;\"\u003e1 MB safety memory\u003c\/span\u003e and \u003cspan style=\"color: #27ae60; font-weight: bold;\"\u003eSIL 3\/PLe safety certification\u003c\/span\u003e, requiring a \u003cstrong\u003e1756-L7SP\u003c\/strong\u003e safety partner module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2. What SD cards are compatible with these controllers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse only \u003cspan style=\"color: #2a5885; font-weight: bold;\"\u003eRockwell 1784-SD1 (1GB) or 1784-SD2 (2GB)\u003c\/span\u003e cards to ensure reliable operation and prevent data corruption.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3. What is the I\/O capacity of these controllers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThey support up to \u003cspan style=\"color: #2a5885; font-weight: bold;\"\u003e128,000 digital I\/O points\u003c\/span\u003e and \u003cspan style=\"color: #2a5885; font-weight: bold;\"\u003e4,000 analog I\/O points\u003c\/span\u003e.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":51050793402500,"sku":"1756-L71S","price":195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/1756-L71S.jpg?v=1771467529","url":"https:\/\/www.etowonauto.com\/nb\/products\/allen-bradley-1756-l71-l71s-pac-module","provider":"Etowon Auto","version":"1.0","type":"link"}