Siemens SINUMERIK 840D SL Operating Manual page 576

Managing programs
14.2 Opening and closing the program
Closing the program
Note
A program does not have to be closed in order for it to be executed.
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5. Press the "NC Select" softkey to switch to the "Machine" operating area
and begin execution.
When the program is running, the softkey is deactivated.
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, 02/2012, 6FC5398-7CP40-3BA0
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