Getting Started with Ethernet RIO Expansion Chassis

Updated Mar 15, 2019

Reported In


  • NI-9146
  • NI-9147
  • NI-9148
  • NI-9149

Issue Details

I have received my new Ethernet RIO expansion chassis and I am struggling to connecting it and getting started. There is both an Ethernet and a USB port on my new chassis, and I would like to know how I can connect it to my existing CompactRIO (cRIO).


The USB port on the Ethernet RIO expansion chassis can be used for easy configuration of the chassis from your Host PC, and to install software on it.

You can use the Ethernet port for different types of setup:
  • Connect the expansion chassis is intended to be connected to your network using e.g. an Ethernet switch. This way, you can access the chassis from all devices connected to the network.
  • Connect the expansion chassis directly to your PC's Ethernet port. You will only be able to access the chassis from your PC.
  • Connect the expansion chassis to the Ethernet port of a cRIO as described in this tutorial. This way only the cRIO itself will be able to connect to the Expansion Chassis. This setup is not the intended use case for¬†Ethernet RIO expansion chassis.

Additional Information

Follow the steps described in the Setup Guide for Ethernet RIO Expansion Chassis to generally set up your Ethernet RIO expansion chassis.