Allen-Bradley 1747-SDN DeviceNet Scanner Module

Allen-Bradley 1747-SDN DeviceNet Scanner Module is a DeviceNet scanner for the SLC 500 family that acts as the DeviceNet master bridging a Rockwell Automation SLC controller to a DeviceNet network. Installed in a 1747 backplane slot, it polls up to 63 DeviceNet I/O devices and maps their input and output data into the SLC 500 processor’s I/O image for real-time control. The module is designed to work with SLC-500 CPUs such as the 5/02 or later models, enabling centralized polling of field devices like sensors, actuators, and other DeviceNet I/O devices on a single PLC rack. Configuration and commissioning are performed with RSNetWorx for DeviceNet, where you define the scanlist, node addresses, and the mapping of DeviceNet data to the controller’s data tables. Detailed installation and user manuals published by Allen-Bradley describe the 1747-SDN as the DeviceNet scanner module for SLC 500 systems, including wiring diagrams, addressing procedures, and diagnostic capabilities that help verify network topology and device presence.