{"product_id":"allen-bradley-1747-l542-slc-500-cpu-controller","title":"Allen-Bradley 1747-L542 SLC 500 CPU Controller","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1747-L542 SLC 500 CPU Controller is a SLC 500 series fixed-style processor (5\/04) with 32K total memory that serves as the central processing unit for SLC 500 control systems. As a CPU module, it executes ladder logic, coordinates I\/O scans, and manages communication across the backplane; it does not include built-in I\/O. The module provides 32K memory total, typically split into about 28K for user program\/data and 4K for the data table, enabling modest program size and data handling for automation tasks. It offers RS232 serial programming and DH+ communications, enabling programming from a PC or controller network through supported interface cables and network adapters. Used with external I\/O racks and a backplane, the 1747-L542 integrates with other SLC 500 components to form a compact control system for machines, conveyors, and packaging lines requiring reliable, mid-range control. This processor is part of the SLC 500 family’s 5\/04 line (along with 1747-L541 and 1747-L543 variants) and is suitable for legacy installations or retrofits that rely on Rockwell Automation’s ladder logic environment and compatible programming tools.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"New","offer_id":51658957717806,"sku":null,"price":1160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_bd6e1b58-4a3d-47fb-a1ea-78a43abbaff2.jpg?v=1769525963","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1747-l542-slc-500-cpu-controller","provider":"PLG Automation ","version":"1.0","type":"link"}