Rockwell Automation 2706-NP3 DL20 OFFLINE PROGRAMMING MANUAL - Manual (Page 32)

Message Operations
Chapter 5
5–9
The screen then shows the memory required for the range of messages
and the remaining free memory.
5. Press any key to return to the message screen.
6. Type the number of the message you want to edit and press [Enter].
The screen displays the message and attributes for the selected number.
If a message is converted to or from an S Record file, the screen will
show the Related S Record File name. Otherwise, this field is blank.
(Chapter 6 defines S Record Files.)