Siemens SINUMERIK 840D SL Operating Manual page 148

Machining the workpiece
4.3 Testing a program
Procedure
See also
Setting for automatic mode (Page 191)
148
1. Press the "Prog. ctrl." softkey and select the desired variant in the "SBL"
field.
2. Press the <SINGLE BLOCK> key.
3. Press the <CYCLE START> key.
Depending on the execution variant, the first block will be executed.
Then the machining stops.
In the channel status line, the text "Stop: Block in single block ended"
appears.
4. Press the <CYCLE START> key.
Depending on the mode, the program will continue executing until the
next stop.
5. Press the <SINGLE BLOCK> key again, if the machining is not
supposed to run block-by-block.
The key is deselected again.
If you now press the <CYCLE START> key again, the program is
executed to the end without interruption.
Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
Milling