Siemens SINUMERIK 828D Programming Manual page 200

Motion commands
9.3 Travel commands with polar coordinates
Meaning
:
G0
:
G1
:
G2
:
G3
:
AP
:
RP
200
Command for the activation of rapid traverse motion
Command for the activation of linear interpolation
Command for the activation of clockwise circular interpolation
Command for the activation of counter-clockwise circular interpolation
Polar angle
Angle between the polar radius and the horizontal axis of the working plane
(e.g. X axis for ). The positive direction of rotation runs counter-clockwise.
G17
Range of values: ± 0...360°
The angle can be specified either incremental or absolute:
: Absolute dimension input
AP=AC(...)
: Incremental dimension input
AP=IC(...)
With incremental dimension input, the last programmed angle
applies as reference.
The polar angle remains stored until a new pole is defined or the working plane is
changed.
Polar radius
The specification is always in absolute positive values in [mm] or [inch].
The polar radius remains stored until a new value is entered.
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
Fundamentals