4.2 System parameter

Name	Type	Meaning
$P_S	REAL	programmed spindle speed
$P_F	REAL	programmed feedrate
$P_TOOLNO	INT	Number of the active tool T
$P_TOOL	INT	Active D number of the active tool
$P_TOOLL[n]	REAL	Active tool length compensation. For G18, $P_TOOLL[1] is X direction, $P_TOOLL[2] is Z direction
$P_TOOLR	REAL	Active tool tip radius compensation
$DIAMOPEN	BOOL	Symbol for diameter mode, TRUE is diameter mode, FALSE is radius mode
$TOOLTIP	INT	Active the tool cutting edge position
$P_AXN1	REAL	Active traverse axis, G17 for X axis, G18 for Z axis, G19 for Y axis
$P_AXN2	REAL	Active longitudinal axis, G17 for Y axis, G18 for X axis, G19 for Z axis
$P_AXN3	REAL	Active working axis, G17 for Z axis, G18 for Y axis, G19 for X axis
$P_EP[AXIS]	REAL	Theoretical coordinates of the tool tip.
$METRIC_SYSTEM	BOOL	Metric sizes. TRUE—metric, FLASE—inch.
$RADIUS_COMPENSATION	STRING	Tool tip radius compensation 1—G40,2—G41,3—G42

Example:

Tool radius set of the T1D2 is 0.5mm, tool offset is X10, Z15, the cutting edge set is 3

N10 T1D2

N20 M03 S500

N30 DIAMOF

N40 G00 X10 Z10 F600

N50 G41 G01 X20 Z20

N60 Z30

N70 X40

N80 R1=$P_S ;R1 value is 500

N90 R2=$P_F ;R2 value is 600

N100 R3=$P_TOOLNO ;R3 value is 1

N110 R4=$P_TOOL ;R4 value is 2

N120 R5=$P_TOOLL[1] ;R5 value is 10

N130 R6=$P_TOOLR ;R6 value is 0.5

N140 R7=$DIAMOPEN ;R7 value is 0, means DIAMOF

N150 R8=$TOOLTIP ;R8 value is 3

N160 R9=$P_AXN1 ;R9 value is 2, represent Z axis

N170 R10=$P_AXN2 ;R10 value is 0, represent X axis

N180 R11=$P_AXN3 ;R11 value is 1, represent Y axis

N190 R12=$P_EP[0] ;R12 value is 40

N200 R13= $METRIC_SYSTEM ;R13 value is 1 , represent metric

N210 R14=$RADIUS_COMPENSATION ;R14 value is 2 , represent G41

N220 G40