Siemens SINUMERIK 840D

Machining the workpiece
4.11 Displaying G Functions and Auxiliary Functions
Milling
166 Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
Procedure
1. Select the "Machine" operating area.
...
2. Press the <JOG>, <MDA> or <AUTO> key.
3. Press the ">>" and "All G functions" softkeys.
The "G Functions" window is opened.
4.11.3 Auxiliary functions
Auxiliary functions include M and H functions preprogrammed by the machine manufacturer,
which transfer parameters to the PLC to trigger reactions defined by the manufacturer.
Displayed auxiliary functions
Up to five current M functions and three H functions are displayed in the "Auxiliary
Functions" window.
Procedure
1. Select the "Machine" operating area.
...
2. Press the <JOG>, <MDA> or <AUTO> key.