FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

The tool length offset value corresponding to offset No. 0,
that is, H0 always means 0. It is impossible to set any other
tool length offset value to H0.
Tool length offset B can be executed along two or more axes when the axes
are specified in two or more blocks.
Offset in X and Y axes.
G19 G43 H _ ; Offset in X axis
G18 G43 H _ ; Offset in Y axis
(Offsets in X and Y axes are performed)
If the TAL bit (bit 3 of parameter No. 5001) is set to 1, an alarm will not
occur even when tool length offset C is executed along two or more axes
at the same time.
To cancel tool length offset, specify G49 or H0. After G49 or H0 is
specified, the system immediately cancels the offset mode.
S After tool length offset B is executed along two or more
axes, offset along all the axes is canceled by specifying
G49. If H0 is specified, only offset along an axis
perpendicular to the specified plane is canceled.
S In the case of the offset in three axes or more, if the offset
is canceled by G49 code, the P/S alarm 015 is generated.
Cancel the offset by using G49 and H00.
D Performing tool length
offset along two or more
D Tool length offset cancel

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