Allen-Bradley 1756-CNB Rev J02 ControlNet Bridge

The Allen-Bradley 1756-CNB Rev J02 ControlNet Bridge is a ControlLogix backplane interface that links a ControlLogix chassis to a ControlNet network, enabling remote I/O and devices to be managed from the local controller. This Rockwell Automation module includes a ControlNet cable and provides two ControlNet ports for bridging between the local chassis and the wider ControlNet network, aligning with standard ControlNet architecture for ControlLogix systems. The Rev J02 designation identifies the hardware revision for this model, designed to operate within a ControlLogix environment and integrate with the 1756 backplane. Rockwell specifies EFT/B immunity of ±3 kV at 5 kHz on the ControlNet ports, providing protection against electrical disturbances on the network. Typical applications include expanding a ControlNet network around a ControlLogix system, connecting remote I/O racks, sensors, and actuators to the controller, and enabling centralized programming and monitoring through the 1756 chassis.