{"product_id":"allen-bradley-1747-l541-ser-b-slc-5-04-cpu","title":"Allen-Bradley 1747-L541 SLC 5\/04 PLC CPU Module","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 1747-L541 SLC 5\/04 CPU Module is a 16K-memory processor for the SLC 500 modular controller family, designed to run ladder logic in small to mid-size control applications. It provides a DH+ communications port for Data Highway Plus networks and an RS-232 serial port for programming or device communication, and it is a chassis-mount CPU that plugs into a 1747 backplane in a SLC 500 rack. The processor stores 16K words of user memory and delivers a program scan time around 0.9 milliseconds per keyword, enabling responsive execution of control logic for sequencing, I\/O control, and alarm handling. Rockwell Automation lists the 1747-L541 as discontinued as of December 31, 2021, so availability may be limited to remaining stock or used units. This model is part of the SLC 5\/04 family (alongside 1747-L542 and 1747-L543 variants) and is commonly found in legacy systems requiring DH+ connectivity and RS-232 programming interfaces.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51658958635310,"sku":null,"price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_4b79d3f0-c0d5-4ec0-a2db-bab574a16404.jpg?v=1769525977","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1747-l541-ser-b-slc-5-04-cpu","provider":"PLG Automation ","version":"1.0","type":"link"}