{"product_id":"allen-bradley-1753-l28bbbm-safety-controller-module","title":"Allen-Bradley 1753-L28BBBM Safety Controller Module","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 1753-L28BBBM GuardPLC 1600 Safety Controller is a compact safety controller module from Rockwell Automation designed for GuardPLC 1600 systems. It carries 250 KB of maximum user program memory, supports 20 safety-related digital inputs at 24 V DC, and provides 8 digital outputs that operate at 18.4–26.8 V (not electrically isolated). The unit includes two RS-485 ports: COMM1 delivers Modbus RTU Slave communication, while COMM3 exposes the GuardPLC ASCII Protocol port (with High-Speed Safety Protocol support in GuardPLC 1600 configurations), enabling integration with safety sensors, interlocks, and external controllers. As part of a GuardPLC 1600 controller, it is intended to implement safety-rated control logic for guarding devices, emergency-stop circuits, and related safety functions on industrial equipment, all powered from a 24 V DC supply. When deployed with compatible GuardPLC I\/O modules and safety devices, the 1753-L28BBBM provides a cohesive safety control solution suitable for machine guards, door interlocks, and other safeguarding functions in manufacturing and processing environments.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657302933806,"sku":null,"price":290.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_11f38032-637b-430f-9cf5-9915e04b94af.jpg?v=1769467704","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1753-l28bbbm-safety-controller-module","provider":"PLG Automation ","version":"1.0","type":"link"}