{"product_id":"allen-bradley-1747-sdn-devicenet-scanner","title":"Allen-Bradley 1747-SDN DeviceNet Scanner","description":"\u003cdiv\u003e\u003cp\u003eAllen-Bradley 1747-SDN DeviceNet Scanner is a backplane‑mounted DeviceNet master for Rockwell Automation’s SLC 500 controllers. It links an SLC 500 chassis to a DeviceNet network, acting as the master scanner that polls up to 63 node‑addressable slave devices and transfers their I\/O data to the CPU over the backplane. The 1747‑SDN maps output data from its scanner output table (M0) and discrete outputs to each node, enabling centralized control of DeviceNet devices such as I\/O blocks, sensors, and actuators on the network. Configuration is performed with RSNetWorx software, and the module’s firmware revision is listed as 4.026. Note that this module is a legacy product and has been discontinued by Rockwell Automation; while it may still be in use on older installations, new units are generally unavailable and support depends on existing stock and legacy documentation.\u003c\/p\u003e\u003c\/div\u003e","brand":"Allen-Bradley","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51658955850030,"sku":null,"price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_fddf2bcf-257d-4c39-abd4-3fb0886e56da.jpg?v=1769525932","url":"https:\/\/plgautomation.com\/products\/allen-bradley-1747-sdn-devicenet-scanner","provider":"PLG Automation ","version":"1.0","type":"link"}