Siemens SINUMERIK 840D Function Manual page 46

G2: Velocities, setpoint / actual value systems, closed-loop control
2.3 System of units, metric/inch
G71:
G700:
G710:
NOTICE
Axis-specific data of rotary axes
Axis-specific data of rotary axes is read and written using the parameterized basic system.
46
Activating the metric system of units
The metric system of units is used to read and write geometrical data in units of length.
Technological data in units of length (e.g. feedrates, tool offsets, adjustable work offsets,
machine data and system variables) is read and written using the parameterized basic sys‐
tem.
G group: 13
Initial setting: Settable via MD20150 $MC_GCODE_RESET_VALUES
Effectiveness: Modal
Activating the inch system of units
All geometrical and technological data in units of length is read and written using the inch
system of units.
G group: 13
Initial setting: Settable via MD20150 $MC_GCODE_RESET_VALUES
Effectiveness: Modal
Activating the metric system of units
All geometrical and technological data in units of length is read and written using the metric
system of units.
G group: 13
Initial setting: Settable via MD20150 $MC_GCODE_RESET_VALUES
Effectiveness: Modal
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA