{"product_id":"allen-bradley-1747-l553-slc-500-processor-module","title":"Allen-Bradley 1747-L553 SLC 500 Processor Module","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 1747-L553 SLC 500 Processor Module is a SLC 5\/05 CPU for the SLC 500 modular controller family, delivering 64K words of user memory and integrated Ethernet and RS-232 communications. It provides Channel 1 Ethernet (10Base-T) for standard Ethernet networks and Channel 0 RS-232 (DH-485, DF1, or ASCII) to connect directly to serial devices or programming terminals. The processor supports up to 4,096 inputs and 4,096 outputs across up to 3 local I\/O chassis on the SLC backplane, with a typical program scan time around 0.9 milliseconds and an I\/O scan time around 0.225 milliseconds, per SLC 5\/05 hardware specifications. Memory is backed by Flash for nonvolatile storage, helping retain programs and data during power cycles. As a CPU module, it plugs into the SLC 500 backplane and works with compatible 1747 I\/O modules to form mid- to large-scale control systems, enabling ladder logic execution and data exchange over both Ethernet networks and RS-232 serial links. The 1747-L553 is identified within the SLC-500 family as a SLC 5\/05 processor with built-in Ethernet and RS-232 ports, making it suitable for retrofitting older lines or integrating legacy devices into modern networked architectures.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51659695948078,"sku":null,"price":4618.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_67dd8f16-7785-42d3-9ff8-00baa2126612.jpg?v=1769529742","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1747-l553-slc-500-processor-module","provider":"PLG Automation ","version":"1.0","type":"link"}