{"product_id":"allen-bradley-1756-l55m24-logix5555-controller-brand-new","title":"Allen-Bradley 1756-L55M24 Logix5555 Controller Brand New","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1756-L55M24 acts as the central processing unit for demanding factory automation architectures within the ControlLogix platform. This Logix5555 series controller integrates a pre-installed 1756-M24 memory board to deliver 3.5 MB of non-volatile user memory. It simultaneously manages high-speed discrete logic, complex motion profiles, advanced process loops, and safety control algorithms. Engineers deploy this module to coordinate large-scale I\/O networks and high-density analog operations across unified industrial frameworks. We deliver this high-performance processor as a 100% brand new, factory-sealed unit to guarantee absolute field reliability and original manufacturing standards.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe following dataset contains the electrical, mechanical, and operational parameters for the 1756-L55M24 hardware:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen-Bradley \/ Rockwell Automation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCatalog Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1756-L55M24\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProduct Line\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eControlLogix (Logix5555 Series)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100% Brand New and Factory Sealed\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eUser Memory Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.5 MB (via integrated 1756-M24 board)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProgram Scan Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.08 milliseconds\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMaximum Digital I\/O Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e128,000 Nodes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMaximum Analog I\/O Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4,000 Inputs \/ 2,000 Outputs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Current (5V DC)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.23 Amps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Current (24V DC)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e14 Amps\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Voltage Continuous\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30 Volts (RS-232 to system)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperational Vibration Tolerance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 to 500 Hertz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to 60 degrees C (32 to 140 degrees F)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCompatible Configuration Software\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRSLogix 5000 \/ Studio 5000 Logix Designer\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackup Battery Options\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1756-BA1 or 1756-BATM Module\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eElimination of Battery-Dependent Program Corruption:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe onboard 1756-M24 non-volatile memory automatically retains compiled ladder logic, structured text, and motion profiles during extended facility shutdowns. This setup prevents program wipeouts if the primary 1756-BA1 battery drains fully while the control cabinet remains unpowered.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOn-the-Fly Maintenance with RIUP Functionality:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module supports Removal and Insertion Under Power (RIUP). This allows maintenance technicians to replace faulty components or swap modules without powering down the main 1756 chassis, maintaining continuous production uptime for critical processing plants.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAggressive Scan Time Optimization:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe execution speed of 0.08 milliseconds allows the processor to resolve high-speed machine control loops instantly. It handles complex math instructions and multi-axis coordinated motion paths without introducing network communication jitter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Electrical Noise and Vibration Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eType-tested at 720V DC for 60 seconds, the RS-232 port isolation circuits block transient voltage spikes and ground loop currents. The mechanical framework withstands continuous factory vibrations from 10 to 500 Hz, making it suitable for direct mounting on heavy machining skids.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use the 1756-L55M24 processor to communicate directly over EtherNet\/IP out of the box?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 1756-L55M24 processor requires an external 1756 communication module (such as a 1756-ENBT, 1756-EN2T, or 1756-CNBR) installed in the same backplane to interface with Ethernet, ControlNet, or DeviceNet industrial networks.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhich software version do I need to program and configure this specific controller?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYou configure the 1756-L55M24 using RSLogix 5000 software. While the hardware supports older revisions, we highly recommend RSLogix 5000 version 20 to ensure maximum firmware stability, comprehensive instruction set utilization, and seamless device diagnostics.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the structural purpose of the pre-installed 1756-M24 component?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1756-M24 serves as the hardware memory expansion daughterboard that physical parameters restrict from the base CPU board. It provides the dedicated 3.5 MB workspace required to hold massive tag databases, user program documentation, and data logging tables.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":43386843791450,"sku":"1756-L55M24","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/48_b7269c1a-5682-4e68-b428-59e9ee9b50d2.jpg?v=1779067920","url":"https:\/\/www.spareoil.com\/products\/allen-bradley-1756-l55m24-logix5555-controller-brand-new","provider":"SpareOil Automation","version":"1.0","type":"link"}