Siemens SINUMERIK 840D sl Operating Manual page 180

Program management
7.2 Opening and closing a program
Closing the program
Note
A program does not have to be closed in order for it to be executed.
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Press the ">>" and "Exit" softkeys to close the program and editor again.
- OR -
If you are at the start of the first line of the program, press the "Cursor left"
key to close the program and the editor.
To reopen a program you have exited with "Close", press the "Program" key.
Operating Manual, 01/2008, 6FC5398-6AP10-2BA0
HMI sl Universal