-Shenzhen Guanhong Automation Co.,Ltd.-
SZGH-CNC1000MDb Series
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3.15 Plane Selection(G17/G18/G19)
Select the planes for circular interpolation, cutter compensation, and drilling by G-code.
Format:
G17 (Mode,Original)
;XY Plane selection
G18 (Mode)
;ZX Plane selection
G19 (Mode)
;YZ Plane selection
The following table lists G-codes and the planes selected by them.
G code
Selected Plane
Xp
Yp
Zp
G17
Xp Yp Plane
X-axis or an axis
parallel to it
Y-axis or an axis
parallel to it
Z-axis or an axis
parallel to it
G18
Zp Xp Plane
G19
Yp Zp plane
Used to ensure circular interpolation plane.this instruction does not produce motion.
3.16 Absolute and Incremental Programming (G90/G91)
There are two ways to command travels of the tool: absolute command and incremental
command.In the absolute command, coordinate value of the end position is programmed; in the
incremental command, move distance of the position itself is programmed. G90 and G91 are used
to command absolute or incremental command respectively.
Format: G90 (Mode,initial) ;Absolute command
G91 (Mode)
;Incremental command
Note:Rotating axis programming,calculation is with nearest of in absolute coordinate system, calculation
is with programming in incremental coordinate system.
Example:
Fig3.11.1 Example of Absolute/Incremental Programming
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