{"product_id":"allen-bradley-1756-l72s-guardlogix-controller","title":"Allen-Bradley 1756-L72S GuardLogix Controller","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1756-L72S GuardLogix Controller is a primary GuardLogix 5570-series processor (Logix5572S) designed for integrated safety and standard control in complex machines. It combines 4 MB of standard memory for user programs with 2 MB of safety memory for safety logic, enabling both conventional control tasks and safety routines on a single platform. Built to handle large-scale automation, it supports up to 128,000 I\/O points, including digital I\/O and up to 4,000 analog I\/O, making it suitable for expansive manufacturing lines and packaging systems where safety-critical logic and fast response are essential. A safety partner module (1756-L7SP) must be installed in the adjacent slot to achieve SIL 3\/PLe operation, per GuardLogix architecture guidelines. The controller uses an open-style enclosure and includes a built-in USB port, with Energy Storage Module (ESM) support for non-volatile memory backup; typical power draw is around 2.5 W (5 VDC at ~800 mA) with associated low-power rails. Common applications include safety-rated machine control for conveyors, material handling, robotics-integrated lines, and other automated processes requiring both high-throughput control and integrated safety logic. \u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51659661410606,"sku":null,"price":1978.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_79510873-a32e-408e-8834-f3d3eeae4455.jpg?v=1769529686","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1756-l72s-guardlogix-controller","provider":"PLG Automation ","version":"1.0","type":"link"}