Selection of planes (G17/G18/G19)

G17                                          X-Y plane                                                   (modal, initial state)

G18                                          Z-X plane                                                   (modal)

G19                                          Y-Z plane                                                   (modal)

Programming G17, G18 or G19 defines the plane in which tool radius compensation and circular interpolation (see Section 4.1.3: "Circular interpolation G02/G03") are effective.

Display of plane selection (G17/G18/G19)
Display of plane selection (G17/G18/G19)

Tool radius compensation:

Please note that tool radius compensation is always active on the first two main axes.

Circular interpolation:

After a plane change with G17, G18 or G19, assignment again applies as per DIN: X, Y, Z are then assigned to I, J, K. The table below illustrates the syntax according to the selected interpolation plane:

Plane

Interpolation type

Target point in plane

Centre point/radius

G17

G02/G03

X..Y..

I..J../R

G18

G02/G03

Z..X..

K..I../R

G19

G02/G03

Y..Z..

J..K../R