{"product_id":"allen-bradley-1747-l541-slc-500-16-point-io-module","title":"Allen-Bradley 1747-L541 SLC 500 16 Point IO Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1747-L541 SLC 500 System Processor (CPU) is the central controller for SLC 500 automation configurations, specifically the SLC 5\/04 platform, and is documented as Rev 7. This CPU module provides 16K words of memory for user programs and data, enabling mid‑range PLC tasks to be stored and executed within a 30‑slot backplane environment. It functions as the system processor in a 1747 backplane and coordinates with a broad set of 1747 I\/O modules to manage discrete automation tasks. For communications, the L541 offers an RS‑232 serial port for programming and a DH+ network interface to exchange data with other controllers and field devices. Depending on configuration, program scan times can be on the order of 0.9 ms per keyword and I\/O scan times around 0.225 ms, supporting responsive control for typical SLC 500 applications. As part of the Rockwell Automation SLC 500 ecosystem, the 1747-L541 is suitable for installations that require a compact, proven CPU with legacy I\/O compatibility and straightforward integration with existing 1747 modules.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51658958274862,"sku":null,"price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_0f912521-6da2-4aed-b8b4-05fe55d5d2b2.jpg?v=1769525973","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1747-l541-slc-500-16-point-io-module","provider":"PLG Automation ","version":"1.0","type":"link"}