HEIDENHAIN TNC 620 (73498x-01) - Manual (Page 122)

122 Programming: Programming aids
4.1 Scr
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d 4.1 Screen keyboard
If you are using the compact version (without an alphabetic keyboard)
TNC 620, you can enter letters and special characters with the screen
keyboard or with a PC keyboard connected over the USB port.
Entering text with the screen keyboard
U Press the GOTO key if you want to enter letters, for example a
program name or directory name, using the screen keyboard
U The TNC opens a window in which the numeric entry field of the
TNC is displayed with the corresponding letters assigned
U You can move the cursor to the desired character by repeatedly
pressing the respective key
U Wait until the selected character is transferred to the input field
before you enter the next character
U Use the OK soft key to load the text into the open dialog field
Use the abc/ABC soft key to select upper or lower case. If your
machine tool builder has defined additional special characters, you can
call them with the SPECIAL CHARACTER soft key and insert them. To
delete individual characters, use the BACKSPACE soft key.