{"product_id":"1769-l18er-bb1b-allen-bradley-compactlogix-5370-dlr-controller","title":"1769-L18ER-BB1B Allen-Bradley CompactLogix 5370 DLR Controller","description":"\u003ch2\u003eAllen-Bradley 1769-L18ER-BB1B CompactLogix Controller\u003c\/h2\u003e\n\u003cp\u003eConfigured for high-density digital logic processing and EtherNet\/IP communication in CompactLogix 5370 L1 platforms, the \u003cstrong\u003eAllen-Bradley 1769-L18ER-BB1B\u003c\/strong\u003e (\u003cstrong\u003e1769-L18ER-BB1B\u003c\/strong\u003e Controller) provides direct physical\/electrical execution. It handles up to 8 EtherNet\/IP nodes, 16 embedded 24 VDC digital inputs, and 16 embedded 24 VDC digital outputs while managing local expansion over the 1734 POINT I\/O backplane bus.\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\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e132 mm x 100 mm x 75 mm\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 (integrated power terminals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOnboard Memory\u003c\/td\u003e\n\u003ctd\u003e512 KB user memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEmbedded I\/O\u003c\/td\u003e\n\u003ctd\u003e16 DC inputs (24 VDC), 16 DC outputs (24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Ports\u003c\/td\u003e\n\u003ctd\u003e2 EtherNet\/IP ports (DLR supported), 1 USB port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLocal Expansion\u003c\/td\u003e\n\u003ctd\u003eUp to 8 1734 POINT I\/O modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWire Size Supported\u003c\/td\u003e\n\u003ctd\u003e22 to 14 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eEtherNet\/IP Deterministic Networks \u0026amp; DLR Ring Execution\u003c\/h3\u003e\n\u003cp\u003eThe dual Ethernet ports on the 1769-L18ER-BB1B utilize an integrated high-speed Ethernet switch that executes Device Level Ring (DLR) fault-tolerant network topologies. DLR implementation delivers sub-millisecond network recovery, ensuring deterministic message delivery between controller tasks and remote nodes during physical ring breaks. The onboard memory manager coordinates backplane bus communication velocity with firmware flash compatibility via Studio 5000 Logix Designer, maintaining precise time synchronization for up to 8 connected EtherNet\/IP nodes across distributed control architectures.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the 1769-L18ER-BB1B backplane accept standard 1769 Compact I\/O expansion modules?\u003c\/p\u003e\n\u003cp\u003eA: No, the 5370 L1 series architecture exclusively supports 1734 POINT I\/O modules for local expansion up to 8 total modules.\u003c\/p\u003e\n\u003cp\u003eQ: How is non-volatile user memory maintained during an unpowered state?\u003c\/p\u003e\n\u003cp\u003eA: The controller utilizes an included 1 GB industrial SD card for non-volatile program and tag retention, removing the requirement for internal lithium backup batteries.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum node capacity over the EtherNet\/IP network interface?\u003c\/p\u003e\n\u003cp\u003eA: The firmware allows up to 8 active EtherNet\/IP nodes to communicate concurrently over the dual-port DLR network.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eMount the 1769-L18ER-BB1B horizontally onto standard 35 mm DIN rail inside an IP54-rated enclosure. Wire the 24 VDC primary power lines directly to the integrated power terminals using 22 to 14 AWG copper conductors, ensuring correct polarity. Maintain at least 50 mm of functional clearance on all sides of the unit to ensure natural thermal convection. Connect the functional ground terminal directly to the cabinet ground bus bar with a low-impedance copper strap to mitigate high-frequency electromagnetic noise across the DLR network lines.\u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":43166056546394,"sku":"1769-L18ER-BB1B","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/465.1.jpg?v=1775031131","url":"https:\/\/www.spareoil.com\/products\/1769-l18er-bb1b-allen-bradley-compactlogix-5370-dlr-controller","provider":"SpareOil Automation","version":"1.0","type":"link"}