{"product_id":"rockwell-automation-1769-l20-compactlogix-l20-processor","title":"Rockwell Automation 1769-L20 CompactLogix L20 Processor","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen-Bradley 1769-L20\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eserves as a reliable, entry-level processor within the CompactLogix family, specifically engineered for standalone machine control and small-scale automation tasks. This controller executes localized logic without the overhead of complex networking hardware, utilizing a built-in RS-232 port for programming and point-to-point data exchange. We supply this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal factory stock, providing a deterministic processing solution for legacy system maintenance and cost-sensitive industrial applications.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\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\u003eCatalog Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1769-L20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eUser Memory\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e64 KB (Non-volatile battery-backed RAM)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eLocal I\/O Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSupports up to 8 local expansion modules\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eExpansion Banks\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMaximum 2 banks (via 1769 expansion cable)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSerial Port\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1 x RS-232 (DF1, DH-485, or ASCII protocols)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e600 mA @ 5.1V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Supply Distance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWithin 4 slots of the power supply module\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBattery Backup\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1747-BA Replaceable Lithium Battery\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStatus Indicators\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRUN, FORCE, BAT, I\/O, and Serial LED array\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVibration Resistance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30g Shock rated (Panel Mount)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50 x 87 x 118 mm\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\u003eScalable Modular Design:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1769-L20 supports up to 8 local expansion modules, allowing you to customize the I\/O mix to fit your specific machine requirements. This modularity ensures you only pay for the I\/O points you actually use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eStreamlined Programming:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe dedicated RS-232 port simplifies point-to-point communication. It natively supports DF1 (Full\/Half-Duplex), DH-485, and ASCII protocols, facilitating easy integration with legacy HMI panels, barcode scanners, and programming laptops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFlexible Mounting Configurations:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis controller features a chassis-less design. It snaps directly onto a standard DIN rail for fast installation or mounts to a panel for maximum vibration resistance in heavy machinery environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDeterministic Logic Execution:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe processor provides stable, predictable execution times for control loops. This reliability makes the 1769-L20 ideal for high-repetition tasks such as conveyor control, pump station management, and simple assembly workstations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLow-Maintenance Operation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe replaceable 1747-BA battery preserves your user program and data during power cycles. Clear LED status indicators on the front panel allow for immediate troubleshooting of I\/O status, battery health, and serial activity.\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\u003eHow many I\/O modules can the 1769-L20 handle?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe controller manages up to 8 local 1769 expansion modules. If your application exceeds one bank, you can extend the configuration to a second I\/O bank using a standard expansion cable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the power supply distance rating for this controller?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1769-L20 must sit within 4 slots of the 1769 power supply module. Exceeding this distance compromises the voltage integrity on the backplane and may cause erratic controller behavior.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan the 1769-L20 communicate over Ethernet?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The 1769-L20 utilizes RS-232 serial communication only. If your application requires EtherNet\/IP connectivity, consider higher-tier models such as the 1769-L32E or newer 5370 L1\/L2\/L3 series.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the module include a battery?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. We provide the 1769-L20 with the standard battery required for non-volatile memory backup, ensuring your logic survives extended downtime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":42870829252698,"sku":"1769-L20","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/390.jpg?v=1772413454","url":"https:\/\/www.spareoil.com\/products\/rockwell-automation-1769-l20-compactlogix-l20-processor","provider":"SpareOil Automation","version":"1.0","type":"link"}