{"product_id":"1769-l20-allen-bradley-compactlogix-processor-module","title":"1769-L20  Allen-Bradley CompactLogix Processor Module","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe 1769-L20 is an entry-level CompactLogix controller designed for standalone machine control and small-scale automation tasks. It provides a reliable solution for applications that do not require Ethernet connectivity, instead utilizing a dedicated RS-232 serial port for communication and programming. The controller supports modular I\/O expansion, allowing a customized hardware footprint, and can be mounted on either a standard DIN rail or a flat panel.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProcessor Model\u003c\/td\u003e\n\u003ctd\u003e1769-L20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUser Memory\u003c\/td\u003e\n\u003ctd\u003e64 KB total (combined user program and system overhead)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Backup\u003c\/td\u003e\n\u003ctd\u003eReplaceable 1747-BA lithium battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Interface\u003c\/td\u003e\n\u003ctd\u003e1 × RS-232 (Channel 0), DH-485 or DF1 protocols\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O Capacity\u003c\/td\u003e\n\u003ctd\u003eUp to 8 local expansion modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Banks\u003c\/td\u003e\n\u003ctd\u003eMaximum 2 I\/O banks (1 expansion cable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackplane Current Draw\u003c\/td\u003e\n\u003ctd\u003e600 mA @ 5 V DC; 0 mA @ 24 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStatus Diagnostics\u003c\/td\u003e\n\u003ctd\u003eLEDs for Controller Status, Channel 0, Channel 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W × H × D)\u003c\/td\u003e\n\u003ctd\u003e50 × 87 × 118 mm \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e0.34 kg \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 60 °C (32 to 140 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eHardware Installation and Mounting\u003c\/h3\u003e\n\u003cp\u003eThe 1769-L20 is designed for industrial environments and should be installed in a clean, dry location. When configuring the system, ensure that the power supply distance rating is observed for all eight supported I\/O modules. The controller features integrated locking tabs for secure DIN rail mounting; however, panel mounting is recommended in applications with higher vibration or shock requirements, where a rating of up to 30 g is supported.\u003c\/p\u003e\n\u003ch3\u003eCommon Technical Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan the 1769-L20 be used on an Ethernet network?\u003c\/strong\u003e\u003cbr\u003eNo. The 1769-L20 does not include a native Ethernet (RJ45) port. Communication is limited to RS-232 serial. Ethernet connectivity would require an external serial-to-Ethernet gateway or upgrading to a CompactLogix L23E or L3xER series controller.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the purpose of the 1747-BA battery?\u003c\/strong\u003e\u003cbr\u003eThe 1747-BA battery maintains power to volatile memory, ensuring retention of the user program and tag data during a power loss. Periodic replacement is recommended to avoid data loss.\u003c\/p\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":52513380663480,"sku":"1769-L20","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/1769-L20.jpg?v=1769756633","url":"https:\/\/www.globalpetroparts.com\/products\/1769-l20-allen-bradley-compactlogix-processor-module","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}