{"product_id":"allen-bradley-1747-l20c-slc-500-digital-i-o-module","title":"Allen-Bradley 1747-L20C SLC 500 Digital I\/O Module","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1747-L20C is a 20-point SLC 500 fixed-controller processor unit that integrates 12 digital inputs (24 V DC, sink) and eight relay-contact outputs in a single module for backplane-based control. It provides 1K words of user memory and DH-485 communications, enabling straightforward networking with other SLC 500 devices. The unit is powered from 120\/240 V AC line power and requires up to 200 mA from a 24 V DC supply to power its on-board logic. This configuration is well-suited for compact discrete-control tasks such as small machines or packaging lines, where the 12 inputs monitor sensors or limit switches and the eight relay outputs drive relays or contactors. As a member of the SLC 500 family, the 1747-L20C supports legacy automation architectures and integrates with Rockwell Automation software environments designed for these fixed-controller systems. \u003c\/p\u003e\u003c\/div\u003e","brand":null,"offers":[{"title":"New Surplus No Box","offer_id":51704740774190,"sku":null,"price":550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_c7304c3a-b524-4a25-afb0-12613e7fbbef.jpg?v=1770149461","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1747-l20c-slc-500-digital-i-o-module","provider":"PLG Automation ","version":"1.0","type":"link"}