{"product_id":"allen-bradley-1769-l33erk-compactlogix-2mb-controller","title":"Allen Bradley 1769-L33ERK CompactLogix 2MB Controller","description":"\u003ch2\u003eAllen-Bradley 1769-L33ERK CompactLogix 2 MB Controller\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAllen-Bradley 1769-L33ERK\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003e1769-L33ERK\u003c\/strong\u003e CompactLogix controller, serves as a modular CPU unit within the CompactLogix 5370 L3 family, designed for deterministic control execution and Ethernet\/IP communication.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003e1769-L33ERK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eAllen-Bradley (Rockwell Automation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOrigin\u003c\/th\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e1.2kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003eHousing width 35 mm (approx.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temp\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Consumption\u003c\/th\u003e\n\u003ctd\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDevice Type\u003c\/th\u003e\n\u003ctd\u003eCompactLogix Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Family\u003c\/th\u003e\n\u003ctd\u003eCompactLogix 5370 L3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUser Memory\u003c\/th\u003e\n\u003ctd\u003e2 MB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eI\/O Expansion\u003c\/th\u003e\n\u003ctd\u003eUp to 16 × 1769 I\/O modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEthernet Nodes\u003c\/th\u003e\n\u003ctd\u003e32 maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCommunication Ports\u003c\/th\u003e\n\u003ctd\u003eDual Ethernet (DLR), USB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStorage\u003c\/th\u003e\n\u003ctd\u003e1 GB SD card included, supports up to 2 GB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecial Feature\u003c\/th\u003e\n\u003ctd\u003eConformal coating (suffix K) for chemical\/moisture resistance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProfinet \/ EtherNet\/IP Deterministic Networks\u003c\/h3\u003e\n\u003cp\u003eThe 1769-L33ERK integrates dual Ethernet ports supporting Device Level Ring (DLR) topology, ensuring deterministic communication and fault-tolerant networking. Backplane bus communication velocity maintains predictable scan cycles across up to 16 expansion modules. Firmware flash compatibility allows seamless upgrades, while I\/O density scaling supports modular expansion without compromising timing integrity.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How many Ethernet nodes can the 1769-L33ERK support? A: The controller supports up to 32 Ethernet nodes.\u003c\/p\u003e\n\u003cp\u003eQ: What is the purpose of the “K” suffix in the part number? A: The “K” suffix designates conformal coating, providing enhanced resistance against chemical exposure and moisture.\u003c\/p\u003e\n\u003cp\u003eQ: What storage options are available? A: The controller includes a 1 GB SD card and supports expansion up to 2 GB.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the controller securely on DIN rail or panel with proper retention.\u003c\/li\u003e\n\u003cli\u003eEnsure dual Ethernet ports are configured for DLR topology to maintain redundancy.\u003c\/li\u003e\n\u003cli\u003eRoute USB and Ethernet cabling separately from high-voltage conductors.\u003c\/li\u003e\n\u003cli\u003eVerify shielding and grounding of I\/O modules to minimize interference.\u003c\/li\u003e\n\u003cli\u003eConfirm SD card installation and firmware compatibility before commissioning.\u003c\/li\u003e\n\u003cli\u003eInspect conformal coating integrity when used in chemically aggressive environments.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":44076075941962,"sku":"1769-L33ERK","price":1800.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/8569\/3770\/files\/1769-L32E_2.png?v=1741073713","url":"https:\/\/www.topbrandsplc.com\/products\/allen-bradley-1769-l33erk-compactlogix-2mb-controller","provider":"Topbrands PLC Limited","version":"1.0","type":"link"}