{"product_id":"allen-bradley-1756-l55-controllogix-processor","title":"Allen-Bradley 1756-L55 ControlLogix Processor","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-L55 ControlLogix Processor is a high‑performance CPU that serves as the central controller within Rockwell Automation’s ControlLogix platform (Logix5555 family). To operate, it pairs with a memory module (for example, the 1756-L55M12 or 1756-L55M22); the latter variant provides 750 KB of user\/program memory and 208 KB of non‑volatile memory when using the 1756-L55M22 option. The L55 accepts firmware up to version 16, placing it among the earlier-generation Controllers in the ControlLogix line. Electrical characteristics include a backplane current of about 1.23 A and a power dissipation around 5.6 W, with thermal dissipation near 19.1 BTU\/hr. The CPU is designed for deployment in a ControlLogix chassis as the processing heart of automated machinery and processes, integrating with other ControlLogix I\/O, communications, and memory modules to form scalable control solutions.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657300738350,"sku":null,"price":362.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_9eb23f8a-0585-4a50-a263-6f88dec30cc8.jpg?v=1769467670","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1756-l55-controllogix-processor","provider":"PLG Automation ","version":"1.0","type":"link"}