Schneider Electric Modbus Plus Network Bridge Multiplexer none - Manual (Page 55)

Configuring the Modbus Models 31007492 45
3.7.2 Printing the Configuration
If you have a printer connected to your terminal, you can use your `Print
Screen' (or equivalent) key to print a hard copy record of your V1, V2,
and V3 screens.
3.7.3 Saving the Configuration
After configuring the Modbus ports, save your configuration using the
V4 screen.