Rockwell Automation 2706-LV2P_LV2R_LV4P_LV4R DL40 PLUS USER MANUAL - Manual (Page 171)

ASCII Character Sets D–5
Publication 2706-807
International Character Set
To access the international character set, also called Latin Alphabet
No.1, use the
[ALT] key in combination with the numeric keypad section
on your keyboard. Hold down the [ALT] key, then enter the 2-digit
hexadecimal value found in the chart below. For example, to enter &,
you would hold down
[ALT] then enter the value 26. The normal
corresponding ASCII character is displayed in the offline message
window when you release the
[ALT] key. When you download the
message file to the DL40 Plus, the characters are displayed in the
international font. The international character set is not available with the
onboard editor.