Siemens sinumerik 840D sl Operating Manual page 388

Programming technology functions (cycles)
8.5 Contour milling
Contour element "Circle"
Parameters
Machining
surface
(only for ShopTurn)
Direction of rotation
R
e.g. X
e.g. Y
e.g. I
e.g. J
α1
α2
β1
β2
Transition to next
element
Radius
Chamfer
Additional commands
Contour element "Pole"
Parameters
Machining
surface
(only for ShopTurn)
X
Y
388
Description
Face C

Face Y

Face B

Peripheral surface C

Peripheral surface Y

Clockwise direction of rotation

Counterclockwise direction of rotation

Radius
End point X (abs or inc)
End point Y (abs or inc)
Circle center point I (abs or inc)
Circle center point J (abs or inc)
Starting angle to X axis
Angle to the preceding element
End angle to Z axis
Opening angle
Type of transition
Radius

Chamfer

R Transition to following element - radius
FS Transition to following element - chamfer
Additional G code commands
Description
Face C

Face Y

Face B

Peripheral surface C

Peripheral surface Y

Position pole (abs)
Position pole (abs)
Operating Manual, 07/2010, 6FC5398-8CP40-0BA0
Unit
mm
mm
mm
mm
mm
Degrees
Degrees
Degrees
Degrees
mm
mm
Unit
mm (in)
Degrees
Turning