{"product_id":"allen-bradley-1756-l71-controllogix-2-mb-controller","title":"Allen-Bradley 1756-L71 ControlLogix 2 MB Controller","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1756-L71\u003c\/strong\u003e is a ControlLogix 5570 standard programmable automation controller manufactured by \u003cstrong\u003eAllen-Bradley\u003c\/strong\u003e. Positioned within the ControlLogix family of controllers, the \u003cstrong\u003e1756-L71\u003c\/strong\u003e delivers control capabilities across digital, analog, and motion control applications. It installs directly into any available slot of a standard ControlLogix 1756 I\/O chassis, interfacing with the backplane to monitor and execute control functions across various industrial tasks.\u003c\/p\u003e\n\u003cp\u003eEquipped with 2 MB of user memory, the \u003cstrong\u003e1756-L71\u003c\/strong\u003e supports up to 32 controller tasks, including continuous, periodic, and event-driven execution models. It offers communication support over EtherNet\/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I\/O, and SERCOS networks via chassis-based communication interface modules. The controller features an embedded USB 2.0 port for local programming and maintenance, alongside an included 1 GB Secure Digital (SD) card for nonvolatile program storage.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 MB User Memory:\u003c\/strong\u003e Provides memory capacity for user programs and tag data.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e32 Controller Tasks:\u003c\/strong\u003e Supports flexible task configuration with up to 1000 programs per task.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Communication Support:\u003c\/strong\u003e Interfaces with EtherNet\/IP, ControlNet, DeviceNet, DH+, Remote I\/O, and SERCOS via chassis-mounted modules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB 2.0 Maintenance Port:\u003c\/strong\u003e Features a full-speed front USB port dedicated to local programming, configuration, firmware updates, and online editing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNonvolatile SD Storage:\u003c\/strong\u003e Includes a pre-installed 1784-SD1 1 GB Secure Digital card for data backup and program storage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Placement:\u003c\/strong\u003e Occupies a single slot and installs in any slot of a ControlLogix chassis.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAutomated assembly lines and discrete manufacturing systems\u003c\/li\u003e\n\u003cli\u003ePlant-wide industrial automation and process control\u003c\/li\u003e\n\u003cli\u003eMulti-axis motion control and positioning systems\u003c\/li\u003e\n\u003cli\u003eDistributed I\/O control over industrial networks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eAttribute\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley \/ Rockwell Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCatalog Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1756-L71\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eControlLogix 5570 Controllers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard User Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eController Tasks\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 tasks (1000 programs per task)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDigital I\/O, Max\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e128,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog I\/O, Max\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal I\/O, Max\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e128,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUSB Port Communication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUSB 2.0, Full speed (12 Mbps), Type-B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNonvolatile Memory Storage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 GB SD card (1784-SD1 pre-installed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Draw @ 1.2V DC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.0 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Draw @ 5.1V DC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e800 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal Dissipation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.5 BTU\/hr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSlot Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight, Approx.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.25 kg (0.55 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 degC \u0026lt;= Ta \u0026lt;= +60 degC (+32 degF \u0026lt;= Ta \u0026lt;= +140 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNonoperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40 to +85 degC (-40 to +185 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 to 95% noncondensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEnclosure Type Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone (open-style)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Mounting:\u003c\/strong\u003e Seat the controller into any available slot of a compatible ControlLogix chassis (1756-A4, 1756-A7, 1756-A10, 1756-A13, or 1756-A17) until the module levers lock firmly in place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Connection:\u003c\/strong\u003e Use the front panel USB 2.0 port for temporary local connection, programming, and firmware flashing. Do not use the USB port in hazardous locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Storage Module:\u003c\/strong\u003e Verify that an approved capacitor-based energy storage module (1756-ESMCAP or 1756-ESMNSE) is properly installed to retain state data during power loss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling and Ventilation:\u003c\/strong\u003e Maintain adequate clearance around the chassis inside the enclosure to ensure proper airflow and prevent ambient operating temperatures from exceeding 60 degC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ec-UL-us:\u003c\/strong\u003e UL Listed Industrial Control Equipment for US and Canada (File E65584); UL Listed for Class I, Division 2 Group A,B,C,D Hazardous Locations (File E194810)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE:\u003c\/strong\u003e European Union 2014\/30\/EU EMC Directive (EN 61326-1, EN 61000-6-2, EN 61000-6-4, EN 61131-2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFM:\u003c\/strong\u003e FM Approved Equipment for use in Class I Division 2 Group A,B,C,D Hazardous Locations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eATEX:\u003c\/strong\u003e European Union 2014\/34\/EU ATEX Directive (EN IEC 60079-0, EN IEC 60079-7, II 3 G Ex ec IIC T4 Gc)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIECEx:\u003c\/strong\u003e IECEx System (IEC 60079-0, IEC 60079-7, Ex ec IIC T4 Gc)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRCM:\u003c\/strong\u003e Australian Radiocommunications Act compliant with EN 61000-6-4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKC:\u003c\/strong\u003e Korean Registration of Broadcasting and Communications Equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCCC:\u003c\/strong\u003e CNCA-C23-01 Explosion-Proof Electrical Products\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEtherNet\/IP:\u003c\/strong\u003e ODVA conformance tested\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52695186145643,"sku":"1756-L71","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/allen-bradley-1756-l71-controllogix-programmable-automation-controller-ua3t5yb1upn_cc45b618-31ae-48bf-9ddd-29f538932f25.jpg?v=1766114467","url":"https:\/\/www.plcprotech.com\/products\/allen-bradley-1756-l71-controllogix-2-mb-controller","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}