After you have completed the above steps and the controllers are listed in the Control Network, look for these indicators next to the nodes:
If a node shows a status indicator, check for hardware faults shown in the Troubleshooting Guide before changing your configuration.
You can automate the comparison between the physical I/O and the configured I/O with the Auto-sense I/O cards command. To use the command, click on the I/O for the node, click the right mouse button, and then select Auto-sense I/O Cards. The Auto-sense Cards dialog lists the card sensed in the controller and the card listed in the database for each slot.
For example, if you add a card to the controller, the dialog displays:
Click OK to add the configuration to the database. (Clicking OK does not affect existing cards.) Click Cancel to decommission the controller and close the dialog.