Rockwell Automation 1790P-T4T0 CompactBlock LDX I/O Thermocouple Modules - Manual (Page 96)

Publication 1790-UM003A-EN-P
E-8 Module Configuration for PROFIBUS
4. Right click to select Connect from the menu. (Or, choose
Edit>Connect).
You may be prompted with a message indicating a configuration
mismatch between what is in the scanner and your current PROFIBUS
project. In this case, select Yes to retain your configuration.
Any configuration mismatches display for the Master status.
Highlight the Master and then right
click to select Connect.