
Example
Assume the following conditions:
• Specified workpiece coordinate system: G56
• G56 workpiece origin offset (X-axis): 50.000
• G56 workpiece origin offset (Y-axis): -60.000
• G56 workpiece origin offset (Z-axis): 5.000
• G56 workpiece origin offset (C-axis): 180.000
• Amount of manual feed-based movement along the X-axis: -10.000 mm
• Amount of manual feed-based movement along the Y-axis: -5.000 mm
• Amount of manual feed-based movement along the Z-axis: 10.000 mm
• Amount of manual feed-based movement along the C-axis: 90.000 degrees
Under the above conditions, the workpiece origin offset for G56 is changed
as follows:
• X-axis: 50.000 + (-10.000) = 40.000
• Y-axis: -60.000 + (-5.000) = -65.000
• Z-axis: 5.000 + 10.000 = 15.000
• C-axis: 180.000 + 90.000 = 270.000
2.6 Operations specific to individual tool offset memory types
The offset to be changed varies with what the tool offset memory (A, B, or C) is
used, as listed bellow.
Tool offset memory Offset to be changed
A The tool length compensation and cutter compensation are
processed in the same way. The content of the same offset
number as effective H code is changed now.
B The tool length compensation and cutter compensation are
processed in the same way. The content of the same offset
number as effective H code is changed now.
Either tool geometry compensation or wear compensation
is changed according to the setting of parameter ASG(bit 4
of parameter No.5000).
C The tool length compensation and cutter compensation at
the offset numbers corresponding to the currently valid H
code and D code, respectively, are changed separately.
Either tool geometry compensation or wear compensation
is changed according to the setting of parameter ASG(bit 4
of parameter No.5000).
Edit
Apprv.
Desig.
Sheet
Title
Draw
No.
4
10
Date
Design
Descri
tion
Date
FANUC Series16i/18i/21i–MA/MB
Changing Active Offset Value
with Manual Move.
02 030205 Overall revision
001106 S. Isohata E. Genma
A-78535E