Rockwell Automation 1738-AENTR, Series B POINT I/O and ArmorPOINT I/O Dual Port EtherNet/IP Adapters User Manual - Manual (Page 58)

50 Rockwell Automation Publication 1734-UM017B-EN-P - October 2013
Chapter 4 Configure the Adapter for Direct Connection in RSLogix 5000 Software
7. Read and acknowledge the warning dialog.
8. Click OK to continue.
Notice the chassis size stored in the module has been changed to 3.
At this point, your POINTBus status LED should be solid green. All the
yellow triangles in your I/O configuration should be gone.
9. Click OK.