Rockwell Automation 1794-OB16D FLEX I/O Diagnostic Modules User Manual - Manual (Page 71)

Publication 1794-UM061A-EN-P - July 2006
Configure Your Adapter and Digital Modules on a ControlNet Network 69
Notice that the 1756-CNB Bridge is now on line, but the rest of the I/O
configuration (adapter and I/O modules) connections are not scheduled
(notice the yellow triangles).
Configure the 1794-ACN15
Adapter
You have now built the I/O tree in RSLogix 5000, and the RSLogix 5000
software used the chassis size from the 1794-ACN15 General Tab. Now you
need to download this new chassis size value into the 1794-ACN15 adapter
hardware. This procedure will synchronize the chassis size value from the
RSLogix 5000 software into the 1794-ACN15 adapter.
1. Highlight the 1794-ACN15 adapter, and right-click to choose Properties.
Verify the node address and the chassis size.