The Allen-Bradley 1747-SDN is a DeviceNet Scanner Module designed for the Allen-Bradley SLC 500 Programmable Logic Controller (PLC) system. This industrial communication module enables efficient data exchange between the SLC 500 controller and DeviceNet adapter modules connected across the DeviceNet network. The 1747-SDN module is compatible with SLC 5/02 and later controllers and occupies a single slot within the chassis. It supports multiple communication modes, including Poll, Strobe, Change-of-State, Cyclic I/O, and Pass-Through configurations, allowing flexible and reliable network management. With a backplane current consumption of 500 mA at 5V DC, the Allen-Bradley 1747-SDN ensures stable and high-performance communication for industrial automation and process control systems.