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2.8
ENTERING COORDINATE VALUES (Cont'd)
Inch/metric
Input Specification (G20, G21)
11)
The
G codes shown below specify the unit of input between metric or
inch.
2.8.2
Table 2.8.3
Specification for
Unit of
Input
t
r
Code
Unit of Input
t
iL'M
Input in inches
(iJl
Input
in
mm
(2)
These G codes are specified
at
the beginning of the
program
in
an
independent
block.
When these G codes
are executed,
the
following are
matched
to
the
altered unit of
input:
d>
Subsequent programs
Offset
quantity
Setting
and
part
of
parameters
<3>
Part of manual
operations
Various display
NOTE
O
The
inch,-
metric selection
setting
is rewritten
by
G20 and G2I.
Therefore,
the
states
of G20
and G21 for
turning power on are
determined
by
the
setting
parameter.
EK
C K
o
l
-j
::
4 ;
G_'n
:
—
—
INl-UT
in
inches
Fig. 2.8.2. Example of Programming
-
94
-
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