Allen-Bradley 1769-SDNK CompactLogix IO Module

The Allen-Bradley 1769-SDNK is a CompactLogix DeviceNet scanner module that acts as the gateway between a CompactLogix controller and a DeviceNet network. It plugs into a 1769 Compact I/O backplane to scan DeviceNet devices and pass their I/O data to the controller, while sending control data back to the DeviceNet devices. The module's data exchange is defined by its SDN Input File and SDN Output File, which map the DeviceNet I/O to the controller's data tables. This particular revision ships with firmware revision 4.4, enabling compatibility with the older CompactLogix/DeviceNet ecosystem and RSNetWorx-based configuration. Typical applications include integrating DeviceNet sensors, actuators, and other field devices into a CompactLogix automation solution, enabling centralized control and monitoring from the 1769 I/O chassis. The 1769-SDNK is designed for use in systems that require DeviceNet network access from a 1769 Compact I/O rack, and it works with the 1769 Compact I/O family and compatible CompactLogix controllers, providing a straightforward path to remote devices on the DeviceNet network.