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

PROGRAMMING
B–62764EN/01
9. COORDINATE VALUE
AND DIMENSION
125
There are two ways to command travels of the tool; the absolute
command, and the 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.
Absolute command
Incremental command
G90 _ ;
G91 _ ;
IP
IP
Absolute command
Incremental command
G90 X40.0 Y70.0 ;
G91 X–60.0 Y40.0 ;
Y
X
70.0
30.0
40.0 100.0
End position
Start position
9.1
ABSOLUTE AND
INCREMENTAL
PROGRAMMING
(G90, G91)
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