1. G Function Description
Specification of drilling axis can be set by G17, G18, G19, as shown
below：
G Code
Oriented plane Drilling axis
G17
XY plane
Z axis
G18
ZX plane
Y axis
G19
YZ plane
X axis
Return to position R point
While processing to the bottom of the hole, tool escapes back to the
initial level or point-R level. In returning, G98/G99 specifies whether the
tool retract to initial level or point-R level. G98 is for returning to initial and
G99 is for returning to point-R level.
Counts of repetition K
If several holes with the same distance are to be processed, specify the
number of holes K ranging from 0 to 9999. The first hole position has to be
set in incremental mode (G91), otherwise the machine will execute the
repeated drilling at the same position.
When K=0, data of drilling motion will be set. But neither X,Y move
instructions set in block nor drilling action will be execute.
Cycle cancel
G80 or G code group 01 can cancel cycle（G00/G01/G02/G03, etc…）
Incremental (G91) / Absolute (G90) Mode
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