27
The definition of function-word
：
：
：
：
N
The number of instruction-segment
G
Prepare function
M
Auxiliary function
S
Principal axis
L
Cycle frequency
X
X axis (diameter) definitely coordinates
Y
Y axis definitely coordinates
U
The increment of X axis relatively current position
V
The increment of Y axis relatively current position
I
when machining arc, Value of coordinates that the center of a circle subtract
the value of start point that X axis.
J
When machining arc, Value of coordinates that the center of a circle subtract
the value of start point that X axis.
R
Specify arc radius
F
Specify machining speed, use for G01
、
G02
、
G03
Note 1
：
：
：
：
Underneath explanation, Appointment as follows:
X[U]n -- It represent X or U, n represent value, but only appear once
.
Y[V]n --It represent Y or V, n represent value, but only appear once too.
PPn -- Random axis combination, include one axis at least, it also can include
two-axis.
Note 2
：
：
：
：
Executing order,
the up line will be executed first than next (except Jump and Call
sub-program instruction),In the same program, M, S and T is executed first than G.
3.2 Coordinates system
This system adopt standard coordinates system, that is right hand Descartes coordinates
system, as follows:
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