Siemens SINUMERIK 840DE

Programming Motion Commands
4.2 Travel commands with polar coordinates, polar angle, polar radius
Fundamentals
4-4 Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
4.2 Travel commands with polar coordinates, polar angle, polar radius
4.2.1 Defining the pole (G110, G111, G112)
Function
The dimensioning starting point is called a pole. The pole can be specified in either
Cartesian or polar coordinates (polar radius RP=... and polar angle AP=...). The
programming commands G110 to G112 are used to provide a unique definition of the
reference point for dimensions. Therefore, neither absolute nor incremental dimensioning
affects the system defined in the programming command.
Programming
G110 X… Y… Z…
Pole parameter, with reference to the last approached position in
Cartesian coordinates
Or
G110 AP=… RP=…
Pole parameter, with reference to the last approached pole in polar
coordinates
Or
G111 X… Y… Z…
Pole parameter, absolute in workpiece coordinate system with Cartesian
coordinates
Or
G111 AP=… RP=…
Pole parameter, absolute in workpiece coordinate system with polar
coordinates
Or
G112 X… Y… Z…
Pole parameter, with reference to the last valid pole with Cartesian
coordinates
Or
G112 AP=… RP=…
Pole parameter, with reference to the last valid pole with polar
coordinates
Parameters
G110 Polar programming relative to the last programmed setpoint
position
G111 Polar programming relative to origin of current workpiece
coordinate system
G112 Polar programming relative to the last valid pole
X Y Z Coordinate identifiers of the axes to be traversed
AP= Polar angle, value range ±0…360°, angle refers to
horizontal axis of the working plane
RP= Polar radius in mm or inches always in absolute positive
values.
Note
In the NC program you can switch non-modally between polar and Cartesian coordinates..