Allen-Bradley 1746-SDN DeviceNet Scanner Module

The Allen-Bradley 1746-SDN DeviceNet Scanner Module is a DeviceNet communications interface for the SLC 500 backplane that enables an SLC 500 processor to act as the DeviceNet master on a field network. The module plugs into a 1746 backplane slot and provides a DeviceNet scanner port that exchanges cyclic I/O data and explicit messages with connected DeviceNet devices, such as sensors, actuators, and DeviceNet I/O blocks. Configuration and mapping of I/O and communication parameters are performed through Rockwell Automation tools, typically RSNetWorx for DeviceNet or the SLC 500 programming environment, and the module follows standard DeviceNet protocols to coordinate data transfer between the PLC and the DeviceNet network. This 1746 catalog number is designed for legacy SLC 500 systems, making it suitable for retrofits and upgrades where DeviceNet field devices need to be integrated with existing Allen-Bradley controllers. As part of the Rockwell Automation ecosystem, the 1746-SDN interoperates with compatible DeviceNet devices and 1746-series backplanes to provide reliable automation networking in manufacturing and packaging applications.