
Chapter 4
Instruction System
4-2
4
Chapter IV Command System
4.1
Description to programming signs
Each step of CNC processing is performed according to the specific program. Each processing program is
composed of several command segments, and each command segment is composed of several function words. The
functions words should be started with letter followed by parameter values.
Definition of function words:
G Preparation function.
M Supplementary function.
L Circle times or time delay.
X X axis coordinate value: relative coordinate value under G91 (by default), and absolute coordinate
value under G90.
Y Y axis coordinate value: relative coordinate value under G91 (by default), and absolute coordinate
value under G90.
I The difference of the coordinate value of the circle center and the starting point of the X axis during arc
processing.
J The difference of the coordinate value of the circle center and the starting point of the Y axis during arc
processing.
R Specify radius of the arc.
4.2
Explanation to coordinates
4.2.1
Relative coordinates
In the coordinate system, if the position of a coordinate point is calculated from the position of another
coordinate point, then this coordinate is called relative coordinate, as shown in the figure below:
Содержание ADT-HC8200
Страница 5: ......
Страница 11: ......
Страница 22: ...Chapter 2 2 12 Figure 2 4 1 1 2 Side view of AIO controller...
Страница 25: ......
Страница 93: ......