{"product_id":"reliance-0-57407-4f-plc-processor-module","title":"Reliance 0-57407-4F PLC Processor Module","description":"\u003cdiv\u003e\u003cp\u003eThe Reliance 0-57407-4F PLC Processor Module is a legacy AutoMax CPU component originally marketed under the Reliance Electric and Baldor Reliance lines, designed to serve as the central processor for AutoMax controllers in older PLC\/DCS installations. Commonly listed as 0-57407-4F, 0-57407-F4, or 0574074F, this processor module plugs into a compatible backplane in an AutoMax rack to execute ladder logic, manage sequencing, and coordinate data exchange with I\/O modules and peripheral devices across the control loop. It appears in vintage industrial control inventories and refurbishment marketplaces as the primary CPU for AutoMax systems, often shipped alongside compatible Reliance Electric or Reliance\/AB backplanes and I\/O modules. For buyers evaluating retrofit or spare strategies, confirm that the chassis, backplane, and firmware revision in use align with the specific 0-57407-4F variant referenced by the supplier listing, since multiple revisions and product lines share similar part numbers.\u003c\/p\u003e\u003c\/div\u003e","brand":"Reliance","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51708607824174,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_2287ade6-bfe5-47cf-b220-82e800a0ef98.jpg?v=1770246942","url":"https:\/\/plgautomation.com\/products\/reliance-0-57407-4f-plc-processor-module","provider":"PLG Automation ","version":"1.0","type":"link"}