{"product_id":"1769-l20-allen-bradley-processor-module","title":"1769-L20 Allen-Bradley Processor Module","description":"\u003ch3\u003e\u003cstrong\u003eProduct Description\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-L20\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(Part Number:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-L20\u003c\/strong\u003e) is an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eentry-level legacy programmable automation controller\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efrom the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley CompactLogix\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efamily. Designed for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esmall-scale standalone applications\u003c\/strong\u003e, this processor provides a reliable and cost-effective solution for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emachine-level control\u003c\/strong\u003e. It features a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecompact, modular design\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ethat allows for easy expansion while maintaining a small physical footprint on the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDIN rail\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eEquipped with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e64 KB of user memory\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand a dedicated\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRS-232 serial port (Channel 0)\u003c\/strong\u003e, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-L20\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esupports\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDH-485\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDF1\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecommunications. It is versatile in its mounting options, supporting both\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDIN rail\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003epanel mounting\u003c\/strong\u003e, and uses the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1747-BA lithium battery\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto maintain the user program and data during power loss. The controller can support up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8 local expansion modules\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eacross two\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eI\/O banks\u003c\/strong\u003e, offering scalability for basic industrial automation needs.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUser Memory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e64 KB (Combined for program and overhead)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLocal I\/O Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSupports up to 8 1769 Compact I\/O modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExpansion Banks\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMaximum of 2 I\/O banks (requires 1 expansion cable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCommunication Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 x RS-232 (9-pin D-shell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSerial Protocols\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDH-485, DF1, ASCII\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProgramming Cables\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1747-CP3 or 1756-CP3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackplane Current Draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600 mA at 5V DC; 0 mA at 24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1747-BA (User-replaceable Lithium)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30V (continuous)\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 to 60 °C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 mm x 87 mm x 118 mm \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.34 kg \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eApplication Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-L20\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis ideal for basic\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emachine control\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003etasks such as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esimple conveyor systems\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003epump control stations\u003c\/strong\u003e, and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esmall packaging machines\u003c\/strong\u003e. Because it relies on\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eserial communication\u003c\/strong\u003e, it is frequently found in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003elegacy installations\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhere integration with older HMIs or\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDF1-compatible devices\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis required.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 1769-L20 support Ethernet communication?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eNo, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-L20\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edoes not have an integrated Ethernet port. For\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEthernet connectivity\u003c\/strong\u003e, you would need to add a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1761-NET-ENI\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodule or upgrade to a newer\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCompactLogix 5370 series\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econtroller (e.g.,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1769-L16ER\u003c\/strong\u003e).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I clear the \"BATT\" LED fault?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eIf the red\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\"BATT\" LED\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis illuminated, it indicates that the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1747-BA battery\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis low or disconnected. You should\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ereplace the battery\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhile the controller is powered on to prevent the loss of the user program stored in RAM.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":48746759520508,"sku":"1769-L20","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/1769-L20_d70e2008-4c50-45d3-bf73-1f74263f5a5c.jpg?v=1770707991","url":"https:\/\/www.electronicplc.com\/products\/1769-l20-allen-bradley-processor-module","provider":"Electronic PLC","version":"1.0","type":"link"}