{"product_id":"controllogix-5570-2mb-pac-module-1756-l71-b-allen-bradley","title":"ControlLogix 5570 2MB PAC Module | 1756-L71\/B | Allen Bradley","description":"\u003ch3\u003e\u003cstrong\u003eAllen Bradley 1756-L71 Series B ControlLogix 2MB Processor Module\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-L71 (Part Number: 1756-L71\/B)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance Programmable Automation Controller (PAC) from the Allen-Bradley ControlLogix 5570 series. Specifically engineered for medium-to-large scale industrial automation, this Series B hardware revision delivers significant processing speed improvements over legacy L6 controllers. With 2 MB of user memory, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-L71\/B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis optimized for high-speed discrete control, motion synchronization, and integrated plant-wide communications.\u003c\/p\u003e\n\u003cp\u003eUnlike earlier generations, the 5570 series features a built-in USB 2.0 port for rapid programming and diagnostics, alongside a dedicated 4-character alphanumeric display for real-time status monitoring. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-L71\/B (1756-L71\/B)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edoes not require a battery for program retention, as it utilizes an internal Energy Storage Module (ESM) to write data to nonvolatile memory during power-down cycles, significantly reducing maintenance requirements.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDetailed Technical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-L71\/B\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoffers precision control with the following technical parameters:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e: Allen-Bradley (Rockwell Automation)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModel \/ Part Number\u003c\/strong\u003e:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1756-L71\/B\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e: ControlLogix 5570 (Logix5571)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUser Memory\u003c\/strong\u003e: 2 MB\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eI\/O Memory\u003c\/strong\u003e: 0.98 MB (Enhanced from legacy models)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNonvolatile Memory\u003c\/strong\u003e: Secure Digital (SD) Card support (1784-SD1 ships standard; 1784-SD2 optional)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication Ports\u003c\/strong\u003e: 1 USB 2.0 (Full Speed) for programming and configuration\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Digital I\/O\u003c\/strong\u003e: 128,000 points\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Analog I\/O\u003c\/strong\u003e: 4,000 points\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLogic Execution Time\u003c\/strong\u003e: 0.08 ms per 1,000 instructions\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Current (5.1V DC)\u003c\/strong\u003e: 800 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBackplane Current (24V DC)\u003c\/strong\u003e: 5 mA\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e: 2.5 Watts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStatus Indicators\u003c\/strong\u003e: 4-character alphanumeric display; RUN, FORCE, I\/O, OK LED indicators\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 0°C to +60°C (32°F to 140°F)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e: 2.5 cm x 14.7 cm x 14.2 cm (1.0 in x 5.8 in x 5.6 in)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e: 0.4 kg (0.9 lbs)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":44000976371811,"sku":"1756-L71\/B","price":260.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/276._ad282e00-d9f9-4eaf-8d44-56699d85f5d2.jpg?v=1770963463","url":"https:\/\/www.autocontrolglobal.com\/products\/controllogix-5570-2mb-pac-module-1756-l71-b-allen-bradley","provider":"AutoControl Global","version":"1.0","type":"link"}