Siemens SINUMERIK 840D sl Operating Manual page 62

Setting up the machine
2.3 Operating modes
Selecting "Repos"
"MDA" mode (Manual Data Automatic)
In "MDA" mode, you can enter and execute G code commands non-modally to set up the
machine or to perform a single action.
Selecting "MDA"
"AUTO" mode
In automatic mode, you can execute a program completely or only partially.
Select "AUTO"
"TEACH IN" submode
The "TEACH IN" submode is available in the "AUTO" and "MDA" modes.
There you may create, edit and execute part programs (main programs or subroutines) for
motional sequences or simple workpieces by approaching and saving positions.
Selecting "Teach In"
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Press the <REPOS> key.
Press the <MDA> key.
Press the <AUTO> key.
Press the <TEACH IN> key.
Operating Manual, 09/2011, 6FC5398-7CP40-2BA0
Milling