{"product_id":"allen-bradley-1769-l18er-bb1b-compactlogix-l1-controller","title":"Allen-Bradley 1769-L18ER-BB1B CompactLogix L1 Controller","description":"\u003ch2\u003eAllen-Bradley 1769-L18ER-BB1B CompactLogix 5370 L1 Controller\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1769-L18ER-BB1B\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1769-L18ER-BB1B\u003c\/strong\u003e CompactLogix Controller, operates as a dedicated hardware component for integrated digital signal execution and network coordination within CompactLogix 5370 L1 platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e1769-L18ER-BB1B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAllen-Bradley\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eSingapore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eStandard CompactLogix L1 Assembly Mass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard CompactLogix 5370 L1 Form Factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC Nominal Input (~11.5 W Power Dissipation at Full Load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e512 KB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrated I\/O\u003c\/td\u003e\n\u003ctd\u003e16 Digital Inputs (24 VDC Sink) \/ 16 Digital Outputs (24 VDC Source)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocal Expansion Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 6 1734 POINT I\/O Modules across POINT Bus Backplane\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNetwork Ports\u003c\/td\u003e\n\u003ctd\u003e2 x RJ-45 Ethernet Ports (Device Level Ring \/ DLR Supported)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEtherNet\/IP Node Limit\u003c\/td\u003e\n\u003ctd\u003eUp to 8 Nodes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNon-Volatile Memory\u003c\/td\u003e\n\u003ctd\u003e1 GB SD Card Included (Supports Up to 2 GB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgramming Port\u003c\/td\u003e\n\u003ctd\u003eUSB 2.0 Full-Speed Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eBackplane Bus Communication Velocity \u0026amp; Determinism\u003c\/h3\u003e\n\u003cp\u003eThe Allen-Bradley 1769-L18ER-BB1B executes motion and discrete logic loops using its internal 512 KB user memory while driving an integrated POINT Bus local backplane interface. Communication across its dual Ethernet ports supports Device Level Ring (DLR) topologies and deterministic EtherNet\/IP messaging across up to 8 network nodes without requiring external switches. The processor maintains continuous I\/O density scaling and predictable backplane bus communication velocity across up to 6 local 1734 POINT I\/O expansion modules, utilizing onboard energy storage for battery-free non-volatile memory retention during power cycles. Seamless firmware flash compatibility ensures synchronized system execution across hardware series revisions.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1769-L18ER-BB1B controller require a lithium battery for memory retention during system power loss?\u003c\/p\u003e\n\u003cp\u003eA: No, the controller uses a battery-free design with internal energy storage technology that transfers active volatile data to the onboard SD card during an unexpected power shutdown.\u003c\/p\u003e\n\u003cp\u003eQ: What is the expansion limit for local field I\/O modules on the 1769-L18ER-BB1B backplane?\u003c\/p\u003e\n\u003cp\u003eA: The processor directly supports an integrated bank of 16 digital inputs and 16 digital outputs, with local backplane expansion accommodating up to 6 1734 POINT I\/O modules installed on its right side.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the controller securely onto a standard 35 mm DIN rail or panel surface using the integrated mounting latches, ensuring grounding straps maintain direct contact with a grounded metal backplate. Supply 24 VDC main power using shielded copper conductors connected to the designated power terminals. Wire embedded digital inputs and outputs with 22 to 14 AWG copper wire, keeping 24 VDC field signal lines segregated from high-voltage AC circuits and variable frequency drive cables. Route dual Ethernet cables through industrial-grade RJ-45 connectors, maintaining proper bend radius limits to prevent packet loss in DLR ring setups.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52902651527480,"sku":"1769-L18ER-BB1B","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/279_d7fbcd27-8a1b-471c-a6e0-ea03f6f7d9b7.jpg?v=1788426846","url":"https:\/\/www.automodulexpert.com\/products\/allen-bradley-1769-l18er-bb1b-compactlogix-l1-controller","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}