{"product_id":"allen-bradley-1753-l28bbbm-programmable-safety-controller","title":"Allen-Bradley 1753-L28BBBM Programmable Safety Controller","description":"\u003cdiv\u003e\u003cp\u003eThe Allen-Bradley 1753-L28BBBM GuardPLC 1600 Safety Controller is a compact, standalone safety controller designed for safety-critical machine automation in the GuardPLC 1600 family. It provides 20 digital inputs and 8 digital outputs and runs from a 24 V DC supply with a maximum load current of 9 A, supported by 250 KB of user memory for programs and 250 KB of application data memory for safety logic. The unit features continuous isolation of 50 V between I\/O, power, and network connections and uses Category 2 wiring on signal and power ports. Communication is via RS-485 ports: COMM1 can function as a Modbus RTU Slave or a Profibus-DP Slave on variants such as 1753-L28BBBM and 1753-L32BBBM-8A, while COMM3 supports GuardPLC ASCII Protocol (read-only) or High-Speed Safety Protocol (HSP) for safety communications. Catalog numbers in this family include 1753-L28BBBM, 1753-L28BBBP, 1753-L32BBBM-8A, and 1753-L32BBBP-8A. Typical applications include implementing emergency-stop responses, safety interlocks, and controlled shutdown sequences within a GuardPLC 1600 safety system and Rockwell Automation safety software ecosystem.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51657302901038,"sku":null,"price":435.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_9811f73e-0f39-4f30-984d-e2cb04aa197f.jpg?v=1769467703","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1753-l28bbbm-programmable-safety-controller","provider":"PLG Automation ","version":"1.0","type":"link"}